Troy worked for 3 hours and 15 minutes. how should he write that on his time card?

a. 3.25
b. 3.15
c. 3.5
d. 3.75

How to determine whether two known pairs of points are on the same line.

Arecipe uses 2 cups of sugar to make 32 brownies. how many cups of sugar are needed to make 72 brownies?

Asmall business produces and sells balls. the fixed costs are $20 and each ball costs $4.32 to produce. each ball sells for $8.32. write the equations for the total cost, c, and the revenue, r, then use the graphing method to determine how many balls must be sold to break even.