1.
Evaluate
b
3
+ 6 if
b
= 2.
A.
12
B.
15
C.
14
D.
512
Hint
2.
Evaluate 5
k
+
if
k
= 3,
m
= 20, and
n
. = 5.
A.
20
B.
7
C.
19
D.
57
Hint
3.
In physics, the number
measures the force of gravity between two objects when
a
and
b
each stand for the mass one of the objects and
d
stands for the distance between them. Find the force of gravity when
a
= 5,
b
= 8, and
d
= 2.
A.
40
B.
10
C.
20
D.
5
Hint
4.
Evaluate
y
3
if
y
= 4.
A.
12
B.
64
C.
43
D.
16
Hint
5.
Evaluate
x
2
+ 2
xy
+
y
2
if
= 4 and
y
= 7.
A.
86
B.
65
C.
78
D.
121
Hint