In this question, we're trying to find how many science kits Ms. Clark bought.
We know that she spent a grand total of $89.85 on the science kits, this price also includes the tax she paid.
We know that she payed $4.85 in taxes
We also know that each kit cost $5 each
Lets first get rid of the tax in the final price.
89.85 - 4.85 = 85
Without tax, she spent $85
Since we know that each kit costs $5 each, we would divide 85 by 5 to see how many kits she bought.
85 ÷ 5 = 17
This means that she bought 17 science kits.
Answer:
17 science kits
