1.
Evaluate
c
+ 5 if
c
= 3.
A.
5
B.
8
C.
3
D.
c
+ 3
Hint
2.
Evaluate 3
x
+ 2
y
if
x
= 3 and
y
= 7.
A.
105
B.
23
C.
5
D.
27
Hint
3.
Evaluate
if
a
= 9,
b
= 6 and
c
= 3.
A.
15
B.
5
C.
9
D.
11
Hint
4.
Evaluate
x
+ 5
y
if
x
= 12 and
y
= 9.
A.
57
B.
71
C.
47
D.
153
Hint
5.
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.
20
B.
40
C.
5
D.
10
Hint