Answer:
x=-4
x=-5
Step-by-step explanation:
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.
1: 5,800
2: 112.5 (total weight, divide by 2, subtract 17 lb)
5: .8 (4 divided by 5)
6:

7: 1,728
9: 9 inches
10: 1.2
Sorry I couldn't give you all of them :(