1.
Evaluate 3 × 2 - 6 ÷ 2 + 5.
A.
-1
B.
8
C.
5
D.
-2
Hint
2.
Simplify 3
x
2
y
+ 2
x
y
2
+ 5
x
2
y
+ 3
y
2
.
A.
8
x
2
y
+ 2
x
y
2
+ 3
y
2
B.
8
x
4
y
2
+5
y
3
C.
8
x
2
y
+ 5
xy
2
D.
13
x
5
y
6
Hint
3.
Solve
A.
a
= 19
B.
a
= 29
C.
a
= 5
D.
a
= -6
Hint
4.
Solve
A.
n
=
B.
n
= 2
C.
n
=
D.
n
= 9
Hint
5.
Which pair of ratios forms a proportion?
A.
B.
C.
D.
Hint
6.
Simplify (7
a
4
b
) (8
a
7
b
6
).
A.
56
a
11
b
7
B.
15
a
11
b
7
C.
15
a
28
b
6
D.
56
a
28
b
6
Hint
7.
Simplify
Assume the denominator is not equal to zero.
A.
B.
C.
D.
Hint
8.
Express 47.5 × 10
-5
in scientific notation.
A.
4.75 × 10
-4
B.
0.475 × 10
-3
C.
4.75 × 10
-6
D.
475 × 10
-6
Hint
9.
Solve
t
– 32 = 96.
A.
t
= -128
B.
t
= -64
C.
t
= 128
D.
t
= 64
Hint
10.
A blueprint of an office building has a scale of
inch = 2 feet. What are the dimensions of a storage closet that measures 3 inches by
inches on the blueprint?
A.
feet by 10 feet
B.
6 feet by 9 feet
C.
8 feet by 12 feet
D.
feet by 4 feet
Hint
11.
Which scatter plot shows that
x
and
y
have a negative correlation?
A.
B.
C.
D.
Hint
12.
Evaluate
p
· (
p
+ 3
q
) –
r
if
p
= -7,
q
= 4, and
r
= -16.
A.
-19
B.
77
C.
-51
D.
45
Hint
13.
Which of the following is not necessarily considered a part of the population?
A.
the data collector
B.
biased sample
C.
random sample
D.
census
Hint
14.
What kind of sampling is represented if dentists from random areas of the city are asked about their favorite toothpaste?
A.
Convenience Sampling
B.
Systematic Sampling
C.
Random Sampling
D.
Cluster Sampling
Hint
15.
Using the box-and-whisker plot, what is the median of Exam B?
A.
83
B.
90
C.
75
D.
60
Hint
16.
What appears to happen in the graph?
A.
Sales have slightly increased.
B.
Sales have dropped.
C.
Sales have doubled each month.
D.
Sales have cut in half each month.
Hint
17.
How could the graph be changed so it is not misleading?
A.
Change the color.
B.
Write out the entire names of the months.
C.
Make the graph start at 0 to see all of the bars.
D.
Change the graph from vertical to horizontal.
Hint
18.
What expression describes the total bill,
b
, divided equally by 4 people?
A.
B.
b
– 4
C.
4
b
D.
b
+ 4
Hint
19.
Translate the phrase
the sum of five and two times a number
into a variable expression.
A.
5 + 2
n
B.
5(2 +
n
)
C.
5
n
+ 2
D.
2(
n
+ 5)
Hint
20.
Which is a graph of real numbers greater than 3?
A.
B.
C.
D.
Hint