What are points for on this app

275/20 simplified (lmbo it told me to add more characters)

Match each equation with the operation you can use to solve for the variable. 1 subtract 10 2 divide by 10 3add 18 4add 10 5 subtact 18 6multiply by 5. 7multiply by 10. a 5 = 10p b p + 10 = 18 c p + 18 = 5 d 5p = 10

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys