22. Write as a radical expression: 2
3/4
.
A.
√
2
4
B.
4
√
2
3
√
2
4
D.
4
√
2
C.
3
23. Which of the following has a root of an imaginary number?

−
32
11
D.
√
3
x

28. Multiply and then simplify:
2
√
7
y
●
√
6
y
●
√
4
y
8y
C.
3
D. 12

31.
If d varies directly as t and inversely as m, then which of the following equations describes the
relation among the
three variables d, t, and
m ?
k
tm
t

32. What is the side length of the square whose area is 256 cm
2
?
A. 128cm
B. 64cm
C. 16 cm
D. 8 cm
33.
What is the value of x in the equation
√
3
x
−
8
= 5 ?
A.
11
B.
C.
13
D.
12
15

34.
The area of a triangle varies jointly as the base and the altitude. A triangle whose altitude is 28 cm
and whose base
is 6 cm has an area of 84 cm
2
. Find the altitude of a triangle of equal area whose base is 8cm.
D.
42

35.
Find the number of days 6 workers can complete a painting job if 4 workers can do it in 12 days.
2 days

36.
C.
80