It math
but explain how to solve for the answer because i could put it in my brain
ab=3x-5
ac=4x-30
bc=2x+20

Ahomeowner plans to hang wallpaper on one wall of a bedroom that is 10 feet long if a stripe of wallpaper is 20 inches wide and stripes or hung vertically how many stripes on wall paper with the homeowner required

Write an algebraic expression for the word expression the quotient of c and 8

Some boys and girls were asked if they had a pet. one third of the group were boys. there were 20 boys. 20% of the girls had a pet. boys with a pet : girls with a pet = 1 : 5 i need to know how many girls there are.