Is this a proportional relationship? If so, find the constant of proportionality and write an equation.

An airplane flies 105 miles in ½ hour. How far can it fly in 1 ¼ hours at the same rate of speed?

Is this a proportional relationship? If so, find the constant of proportionality and write an equation.

What is the cost of six filters if eight filters cost $39.92?

Bob is taking his son to look at a college 150 miles from their home. In the first hour they drive at a rate of 60 mph. If they want to reach their destination in 2 ½ hours, what speed must they average the last 1 1/2 hours?

You jog 3.6 miles in 30 minutes. At that rate, how far will you run in 20 minutes?

Is this a proportional relationship? If so, find the constant of proportionality and write an equation.

A chef filled up 3 containers with mashed potatoes. He ended up using 2 1/4 pounds of potatoes. Find the the amount of containers the chef will fill with 1 pound of mashed potatoes.

Jasmine is building bird houses. It takes 4 1/2 hours to build 4 hours. How many birdhouses could she build in 1 hour?

Jack delivered 90 newspapers in 20 minutes. At this rate, how long will it take him to deliver 135 newspapers?

Benito saves $6 out of every $20 he earns. He earned $90 one month. How much did he save?

Is this a proportional relationship? If so, find the constant of proportionality and write an equation.

If one gallon of paint covers 825 sq. ft., how much paint is needed to cover 2640 sq. ft.?