Add the following fractions and reduce or convert to mixed numbers, if necessary.
[10 points]


1.

+ =


2.

+ =


3.

+ =


4.

+ =


5.

+ =

Calculate the following. Please show all work.
[30 points]


6.

What
is the percentage change from $5 to $8


7.

What
is the percentage change from $10 to $7


8.

What
is the percentage change from $40 to $90


9.

What
is the percentage change from $50 to $30


10.

What
is the percentage change from $25 to $37.50


11.

If
the price of a jug of orange juice is reduced from $4 to $2, by what percent is the price
reduced?


12.

The
Omaha Corporation laid off 15% of its 6,000 employees last month. How many employees were NOT laid
off?


13.

A
certain credit card company charges % interest on the
unpaid balance. If Yvonne has an unpaid balance of $700, how much interest will she be charged for
one month?


14.

Fidel
bought $900 worth of stocks on Monday. On Thursday, he sold these stocks for $600. Excluding
commissions, what percent does his loss represent of his original investment?


15.

Jackie started the day with $200 in her pocketbook. She spent 4% of it to buy
breakfast, 5% to buy lunch, and 6% to buy dinner. If she didn’t spend any other money that day,
how much money did she have left at the end of the day?


16.

There
were 15 people at a board meeting. If the ratio of men to women was 3:2, how many women were at the
meeting?


17.

At
the Leading Edge Corporation. the ratio of clerical workers to executives is 8 to 2. If a total of 90
people work for that corporation, how many are clerical workers?


18.

In
2004 there were 504 crimes committed in the 14^{th} precinct. These crimes involved theft,
rape, and drugs in the ratio of 5:2:2. How many crimes involved rape?


19.

Jenny’s pulse rate is 18 beats every 15 seconds. What is her pulse rate in beats
per minute?


20.

Meg
died and left $400,000 to her 3 children, Juan, Jorge, and Amelia in the ratio of 9:6:5,
respectively. How much is Juan’s share?



CAR AND TRUCK
SALES   Herb  Daniel  Josh  Marlene  Evelyn  Week 1  7  5  6  8  7  Week 2  3  7  9  5  5  Week 3  6  8  8  7  6  Week 4  7  9  7  6  8       
Table 1


21.

The
monthly sales award is given to the sales associate with the highest weekly average for the month.
Who won the award in the month shown in Table 1 above?


22.

Which
sales associate made the median number of sales for the month shown in Table 1 above?


23.

What
was the average (mean) weekly sales figure for each sales associate in the month shown in Table 1
above?


24.

What
was the average (mean) monthly sales figure for these sales associates in the month shown in Table 1
above?


25.

What
was the most likely number of weekly sales (mode) for an associate in the month shown in Table 1
above?


26.

A bag
contains 100 MMs: 25 white, 24 red, 14 purple, 26 yellow, and 11 green ones. What is the probability
of selecting either a yellow or a green MM?
[2 points]


27.

A can
contains 400 mixed nuts: almonds, cashews, and peanuts. If the probability of choosing an almond is
and the probability of choosing a cashew is , how many peanuts are in the can?
[2 points]


28.

A
certain triangle has an area of 27 square inches. If its base is 6 inches, what is its height in
inches? [2 points]


29.

What
is the approximate circumference of a circle whose diameter is 30 inches? [2 points]



Figure 1


30.

What
is the perimeter of the polygon (Figure 1) in inches? [2 points]

Subtract these fractions and reduce if necessary.
[10 points]


31.

— =


32.

— =


33.

— =


34.

— =


35.

— =
