Rational Numbers

Which of the following represents the set of whole numbers?

• 1, 2, 3, 4, ...

• 0, 1, 2, 3, ...

• -1, 0, 1, 2, ...

• 0.5, 1.5, 2.5, 3.5, ...

What is the result of multiplying two negative numbers together?

• A positive answer.

• A negative answer.

• An answer with the sign of the first number.

• An answer with the sign of the second number.

Sarah bought 3 dresses, each costing $45.50. She also paid a $9.99 shipping fee. How much did Sarah spend in total?

• $146.49

• $136.50

• $145.49

• $137.99

Raj has 15 gallons of paint. Each gallon of paint will cover 250.5 square feet. How many square feet will Raj be able to cover if he uses all these gallons of paint?

• 3757.5 square feet

• 3765 square feet

• 3775.5 square feet

• 3750.75 square feet

Mrs. Jones needs 16 1/2 feet of border to decorate a bulletin board. She has one pack of border that is 3 1/2 feet long and another that is 5 1/2 feet long. How much more border does she need?

• 7 1/2 feet

• 8 feet

• 7 feet

• 8 1/2 feet

What is the sum of the following numbers? 12.5 + (-7 1/4)

• 5.25

• 4.25

• 5.75

• 6.25