1.
Evaluate
if
a
= 5,
b
= 6 and
c
= 3.
A.
3
B.
10
C.
30
D.
Hint
2.
The equation
where
d
represents the distance in miles
and
t
is the number of seconds between seeing lightening and
hearing thunder, tells how far away a thunderstorm is.
How far is it to a thunderstorm if you count 15 seconds between
seeing the lightening and hearing the thunder?
A.
1 mile
B.
10 miles
C.
3 miles
D.
15 miles
Hint
3.
Evaluate 7 × (
a
- 4) if
a
= 9.
A.
35
B.
59
C.
28
D.
63
Hint
4.
Evaluate
x
2
+ 2
xy
+
y
2
if
= 4 and
y
= 7.
A.
121
B.
78
C.
86
D.
65
Hint
5.
Evaluate
j
-
k
if
j
= 10 and
k
= 2.
A.
8
B.
5
C.
12
D.
20
Hint