7th math
posted by Justin on .
Simply the expression.
1  (3x + 2)  7x + 8

1  (3x + 2)  7x + 8
1 2 + 8 + 3x  7x
5  4x 
what is 2 digit number which is 9 times the sums of its digit?

Mary earns $8 per hour.Write an algebraic expression to evaluate how much money Mary will earn if she works for 15,20,25,or 30 hours.