7TH MATH EXAM REVIEW

At the farmers' market, you can buy 3 melons for $10.50, 6 melons for $21, or 9 melons for $31.50.  What is the constant of proportionality for buying melons?

• 3.50
• 5.75
• 10.50
• 63.00

The cost of 50 pounds of pet food is $117.50. What is the cost for one pound of pet food? (UNIT RATE)

• $0.43

• $2.35

• $23.00

• $235.00

On a map, the distance between two cities in 7.3 centimeters.  The map scale is 1 cm : 50 km.  What is the actual distance between the two cities?

• 365 cm
• 365 km
• 400 km
• 500 km

What is the volume of the rectangular prism to the nearest cubic centimeter?

• 68 cm³
• 75 cm³
• 81 cm³
• 135 cm³

Zack flips a coin and rolls a number cube with sides labeled 1 to 6. What is the probability that he gets heads and a number greater than 4?

• 1/6
• 1/4
• 1/3
• 1/2

Your school is choosing new school colors. Which group should you ask to get a random sample of student opinion?

• ten 7th grade students
• every tenth student that enters the building in the morning
• twenty 1st and 2nd graders
• every other student going into the principal's office

A circular railroad-crossing sign has a diameter of 30 inches. Which measurement is closest to the area of the sign in square inches?

• 94.2 in²

• 188.4 in²

• 706.5 in²

• 2826 in²

Two rectangles were used to form the following picture frame. Which measurement is closest to the area of the shaded region of this picture frame in square inches?

• 177 in²

• 357 in²

• 537 in²

• 180 in²