Exam 2: Making Sense of It All

A 6-pack of soda is on sale for $2.00. A can of soda from a vending machine costs $0.65. Which is the better buy?

Solve the equation using the multiplication or division property of equality. -7x = 35

Convert the unit of weight and mass. Round the answer to one decimal place if necessary.

A stock closed at $12.80 on Monday. By Friday, the closing price was $11.52. Find the percent decrease.

Find the area of the circle. Use for

Find the unit cost of each package of napkins to determine the best buy. (Round to four decimal places.) a. $2.35 for 400 napkins b. $0.80 for 100 napkins

Convert the metric units of length using the prefix line.

Solve the equation.

Find the unit cost. A package of 8 AAA batteries costs $4.32.

Simplify by collecting the like terms. Then solve the equation. 8 x-7 x+9=10-7

Solve the proportion.

Write the phrase as an algebraic expression. The difference of x and -4

The weight of a child in 1990 was 40 lb. By 2005, the child's weight had increased to 90 lb. What was the percent increase?

Solve the equation.

Whatever happened to 1 pound bags of coffee? My favorite brands of coffee are Eight O'Clock and dunkin Donuts, but it is hard to compare because they come in different size bags. Compare the following: Eight O'Clock Coffee comes in an 11 oz bag for $5.99 Dunkin Donuts Coffee comes in a 12 oz bag for $6.69 Find the unit price for each bag of coffee to determine the best deal.

Find the circumference of the circle. Use 3.14 for

The Thompsons have 4 cats and 3 dogs. a. Write a ratio in fraction form of cats to dogs. b. Write a ratio in fraction form of dogs to cats. c. Write a ratio in fraction form of cats to the total number of pets.

Solve the equation using the addition or subtraction property of equality.

Select the percent increase of a price that is triple the original amount. For example, a book that originally cost $10 now costs $30.

Solve the inequality. Write your answer in set-builder notation.