Well sure, go w that and see what you get
C) if you multiply it you get w^2 + 7w +11w+77, which is w^2+18w+77
Firstly, you do 90 - 42 to get the amount of brownies sold, which is 48. Then, you put 42 and 48 into a ratio like 42:48. After that, all you need to do is simplify to get 7:8.
C. For each hour he works, his earnings go up by $8.
5(2y-4) - 3y = 1. 10y-20-3y=1. 7y-20=1. 7y=21. y =3. x = 2(3)-4. x = 2. x*y =6.
