Benchmark 2 Review Math 7

A farmer has harvested 1.6 tons of sweet potatoes from one-quarter of an acre. How many tons will he harvest from one acre?

The business owner purchases 5 buckets, 10 brushes, 48 towels, and 1 case of air fresheners for the car wash. The total cost of the purchases is $144.08. Each bucket costs $2.89, each brush costs $7.91, and each towel costs $0.36. What is the cost of the air fresheners?

Identify the constant of proportionality.

• k = 25

• k = 50

• k = 100

• k = 1/50

• none (not proportional)

The graph shows the cost per hour for renting a jet ski at the lake.
Which equation represents the same constant of proportionality shown in the graph?

• c = 12.5h
• c = 50h
• c = 25h
• c = 5h

Identify the constant of proportionality.

• k = 1/90

• k = 90

• k = 1/30

• k = 30

• none (not proportional)

Is this table proportional?

• Yes
• No

Which statement best describes the relationship between x and y in the table?

• Proportional
• Not Proportional