Answer:
$300
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.