1.
Solve the equation shown by the model.
A.
x
= -4
B.
x
= -3
C.
x
= -15
D.
x
= -6
Hint
2.
Solve –75 = –25
a
.
A.
–50
B.
3
C.
–100
D.
Hint
3.
Solve –8
z
= 32.
A.
4
B.
24
C.
–4
D.
–24
Hint
4.
Solve 11
r
= 99.
A.
9
B.
8
C.
11
D.
-9
Hint
5.
One gallon is four times as much as one quart. A gallon of water weighs about eight pounds. Use the equation 4
q
= 8 to find out about how much a quart of water weighs.
A.
4 pounds
B.
8 pounds
C.
1 pounds
D.
2 pounds
Hint