How many boxes of tissue can you buy with $21 if one box costs $7?

What is the anwers for 9+2x=5x-3-x

Write 5(6x+4)-2(5x-2) in the form a(bx+c) where a,b and c integers and a> 1

The length of a field is 100 yards and its width is 75 yards. if 1 inch represents 25 yards, what would be the dimensions of the field drawn on a sheet of paper?