1.
Evaluate
c
+ 5 if
c
= 3.
A.
c
+ 3
B.
5
C.
3
D.
8
Hint
2.
Evaluate
a
b
+ 8 if
a
= 4 and
b
= 7
A.
28
B.
36
C.
60
D.
55
Hint
3.
Evaluate
x
+ 5
y
if
x
= 12 and
y
= 9.
A.
71
B.
153
C.
47
D.
57
Hint
4.
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.
5
B.
40
C.
10
D.
20
Hint
5.
Evaluate
j
-
k
if
j
= 10 and
k
= 2.
A.
8
B.
12
C.
5
D.
20
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.