If 45 apples cost $15, how many apples can be purchased for $9
45 / 15 = N / 9 where N is the number of apples
3 = N / 9 multiply both sides by 9
27 = N
wait I have one more
Justin bought a sweatshirt for $45.00. The sales tax is 5%. How much will he pay for the sweatshirt?
