Question

wangari plants trees at a constant rate of 12 trees every 3 hours. write an equation that relates p, the number of trees wangari plants, and h, the time she spends planting them in hours.

Explanation:

Step1: Find planting rate per hour

$\frac{12}{3} = 4$ trees per hour

Step2: Relate trees to time

The number of trees $p$ equals rate times hours $h$.
$p = 4h$

Answer:

$p = 4h$