1.
Find –8
x
3
y
2
(3
xy
4
– 2
x
5
–
y
).
A.
–5
x
4
y
6
- 10
x
8
y
2
- 9
x
3
y
3
B.
–24
x
4
y
6
- 16
x
8
y
2
+ 8
x
3
y
3
C.
–24
x
4
y
6
+ 16
x
15
y
2
+ 8
x
3
y
3
D.
–24
x
4
y
6
+ 16
x
8
y
2
+ 8
x
3
y
3
Hint
2.
Write an expression for the area of the rectangle shown below.
A.
6
xy
2
+ 7
x
3
y
B.
9
x
2
y
4
+ 12
x
4
y
3
C.
12
xy
2
+ 4
x
3
y
D.
6
xy
2
+ 4
x
3
y
Hint
3.
Simplify 5(2
k
2
– 3
k
) – 6
k
(–
k
2
+
k
– 7).
A.
6
k
3
+ 4
k
2
+ 27
k
B.
–6
k
3
+ 4
k
2
+ 27
k
C.
–6
k
3
+ 4
k
2
– 5
k
D.
6
k
3
+ 4
k
2
– 5
k
Hint
4.
A worker has a cafeteria meal plan. The plan requires her to pay $20 for the card, and $1 each time
x
she uses it. If the company sells 100 cards, what is its total revenue?
A.
100
x
B.
2100
C.
2000 + 100
x
D.
2000
Hint
5.
Solve
x
(
x
– 2) + 2
x
(
x
+ 3) + 10 = 3
x
(
x
– 1) + 31.
A.
x
= 2
B.
x
= –2
C.
x
= 3
D.
x
= 4
Hint