Set up an equation to solve.
$8.50x (since it is the rate of change) + $12 (flat fee) = total money earned (or y). In this case, we have the total, amount, and are looking for x. Plug $139.50 into the equation.
$8.50x + $12 = $139.50
Now, solve for x.
$8.50x + $12-12 = $139.50-12 > <em>$8.50x = $127.5</em>
$8.50/8.50x = $127.5/8.50 > <em>x = 15</em>
So, the correct answer is <u>D. Olivia babysat for 15 hours.</u>
Answer:
The area of Nancy's garden is 
Step-by-step explanation:
I assume that the Nancy's garden is a rectangle shape
To find the area first convert mixed number to an improper fraction


Therefore
The area is equal to

convert to mixed number

Step-by-step explanation:
It is possible
One person will get 246 while the other will get 266 = 512
Answer:
23%
Step-by-step explanation:
To find how many failed inspection, add together all the percentages:
15 + 5 + 3
= 23
So, 23% of the products failed inspection
Answer: The answer is...9 and 1/2!
Step-by-step explanation: Subtraction of course!