1.
Evaluate
b
3
+ 6 if
b
= 2.
A.
12
B.
15
C.
14
D.
512
Hint
2.
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.
20
C.
10
D.
5
Hint
3.
Evaluate
y
3
if
y
= 4.
A.
12
B.
16
C.
43
D.
64
Hint
4.
Evaluate
x
2
+ 2
xy
+
y
2
if
= 4 and
y
= 7.
A.
65
B.
121
C.
78
D.
86
Hint
5.
Evaluate
j
-
k
if
j
= 10 and
k
= 2.
A.
12
B.
20
C.
5
D.
8
Hint
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.