Answer:
c.) 4 x (2)^x
Step-by-step explanation:
Your total after tax is $30.12
A 20% tip is approximately $5.50 ($5.67)
In math, when you see the word "of" it usually means "times".
So the question is:
<u>2/3 times something = 10</u>
Multiply each side of the equation by 3 :
2 times something = 30
Divide each side by 2 :
<em> something = 15</em>