Final exaM 459
DeMYSTiFieD / algebra DeMYSTiFieD / gibilisco / 000-0 / appendix
Mary Ann bought a pair of boots that were marked down 25%. If she
paid $128.40 after a sales tax was 7% added, what was the original price
of the boots?
A. $150.00 B. $151.50 C. $153.60 D. $160.00
(^) xx^8 − 3 + 35 − =
A. 3 −^3 x B. −+
−
39
32
x
()x
C. (^) x^3 − 3 D. (^1) −^1 x
Which interval is the solution for^12 <^31 x 4 − <^5?
A.^5
3
7,
B. (,−∞ ∪∞^17 )(,) C. (,^17 ) D. (,^12 )
- 354 xy^106 =
A. 32 xy^323 x B. 32 xy^23 x C. 92 xy^323 x D. 92 xy^23 x
- What is 60 increased by 20%?
A. 68 B. 69 C. 70 D. 72
- The interval (,−∞ 6 ) is represented by
6 6
6
A.
6
C.
B.
D.
- xx
xx
2
2
12 32
20
++
−−
=
A. x
x
+
+
8
5
B. 38
5
x
x
+
+
C.
x
x
+
−
8
5 D.^
xx
xx
2
2
12 32
20
++
−−
cannot be simplified.