Question

brian tutors chemistry. for each hour that he tutors, he earns 40 dollars. his earnings, e (in dollars), after tutoring for h hours is given by the following. e = 40h. how much does brian earn if he tutors for 3 hours?

Explanation:

Step1: Identify the formula

The formula for earnings is $E = 40h$, where $h$ is the number of hours and $E$ is the earnings.

Step2: Substitute the value of $h$

Given $h = 3$, substitute it into the formula: $E=40\times3$.

Step3: Calculate the result

$40\times3 = 120$.

Answer:

120