Question

This one I need the answers for both of 12 points!!!!

Answer 1

Part A

c - number of washed cars

Answer: 400 + 5c > 900

Part B

400 + 5c > 900 | - 400

400 + 5c - 400 > 900 - 400

5c > 500 | : 5

5c : 5 > 500 : 5

c > 100

Answer: 100 cars