Solve the variable by writing a proportion. Estimate the answer first, then solve the proportion.

6 pencils at $7.35.

x pencils at $9.00

Solve the variable by writing a proportion. Then solve the proportion.

6 bottles in 3 cases.

z bottles in 8 cases.

A truck travels for 5 h at an average speed of 85 km/h. How far does the truck travel?

A hawk flies 120 km in 2 h. At this average speed, how far could the hawk travel in 6 h.

Find the unit price of the item.

6 oz of crackers for $1.08

4 yd of upholstery fabric for $60

If you pay $3000 in property tax for a $90,000 house, about how much would you pay for a $110,000 house?

The typical heartbeat rate (or pulse) is 72 beats per minute. If you take your pulse for 20 seconds, how many beats would you expect to feel?

Convert the given rate using ratios.

30 mi/h = ft/s

30 cm/s = m/min