1.
Write an algebraic expression to represent ''the sum of 6 and three times a number squared.''
A.
6 + 3
x
2
B.
6 + 3
x
C.
6(3
x
)
2
D.
6(3
x
)
Hint
2.
Name the property illustrated by the statement below.
If 5
n
= 15, then 15 = 5
n
.
A.
reflexive property of equality
B.
substitution property of equality
C.
symmetric property of equality
D.
transitive property of equality
Hint
3.
Solve 18 +
a
= 36.
A.
-18
B.
-2
C.
18
D.
54
Hint
4.
Solve 7(2
k
+ 4) - (3
k
+ 1) = 49.
A.
4
B.
2
C.
1.8
D.
1
Hint
5.
The formula for the area of a trapezoid is
Solve the formula for
h
.
A.
B.
C.
D.
Hint