Aparachutist descends 64 feet in 4 seconds. express the rate of the parachutist's change in height as a unit rate.
the unit rate of the parachutist's change in height is __ feet per second.

Convert 16 yards to feet use the conversion rate 3 feet = 1 yard

Hiroaki wants to find 3 3/4 - 7/8 explain why he must rename 3 3/4 to do the subtraction.

Nick has box brads. he uses 4 brads for the first project. nick let’s b represent the original number of brads and finds that for the second project, the number of brads he uses is 8 more than half the difference of b and 4. write an expression to represent the number of brads he uses for the second project.