Respuesta :

Answer:

$300

Step-by-step explanation:

Let p = Valerie's paycheck in dollars.

Using the information in the question, we can determine the following:

21 = 0.07p

Isolate p. Divide each side of the equation by 0.07.

300 = p

Therefore, Valerie's paycheck is $300. Let's check our answer just to be sure.  To do so, find 7% of 300. If the answer is correct, 7% of 300 should be 21.

0.07*300 = 21

The answer is correct.