1.
Evaluate
a
-
b
2
if
a
= 4 and
b
= 3.
A.
-13
B.
1
C.
13
D.
-5
Hint
2.
Evaluate
if
t
= 8,
u
= -2, and
v
= 5.
A.
0.08
B.
0.56
C.
2.8
D.
0.2
Hint
3.
An 18-foot ladder is placed 6 feet from the wall. Approximately how high does the ladder reach?
A.
17.8 ft
B.
19 ft
C.
12 ft
D.
17.0 ft
Hint
4.
Evaluate
z
– (2
yz
+
y
) ·
y
if
y
= -3 and
z
= 2.
A.
9
B.
23
C.
-43
D.
47
Hint
5.
The formula for the perimeter of a rectangle is
, where
is the length of the rectangle and
w
is the width. If a rectangle is 17 ft long and 8 ft wide, what is its perimeter?
A.
42 ft
B.
25 ft
C.
68 ft
D.
50 ft
Hint