Exponents
(x3)2 * x–2 = ?
a)x–4
b) x
c) x6
d) x4
d) x4
Find the solutions to this equation: x2+12x+27
(x+3)(x+9)
x = -3, -9
How many prime numbers are between 1 to 25?
a) 9
b) 8
c) 7
d) 11
a) 9
Write 7.5% as a fraction?
a) 7.5/100
b) 15/2000
c) 14/100
d) 3/40
d) 3/40
If 3x = 27, then 22x = ?
a) 64
b) 32
c) 3
d) 8
a) 64
Find the solution(s): x2 - 2x - 48=0
x= 8, -6
Four consecutive odd integers sum to 40. How many of these numbers are prime?
a) 2
b) 0
c) 3
d) 4
c) 3
A total of 200,000 votes were cast for two opposing candidates. If the losing candidate received 40% of the vote, how many votes did the winning candidate receive?
a) 100,000
b) 120,000
c) 50,000
d) 80,000
b) 120,000
If 3 + 3n+3 = 81, what is 3n+2 ?
a) 26
b) 81
c) 3
d) 9
a) 26
Find the solutions to this equation: x2-16
(x + 4)(x – 4)
x = -4, 4
How many integers lie between −4 and 426, including the end points?
a) 430
b) 431
c) 421
d) 432
b) 431
25% of 64 is equal to 5% of what number?
a) 108
b) 320
c) 112
d) 90
b) 320
If (300)(400) = 12 * 10n, n = ?
a) 12
b) 2
c) 4
d) 3
c) 4
Find the solution(s) for: x2 - 1
x = 1, -1
How many numbers between 1 and 100, inclusive, are both prime and a multiple of 4?
a) 0
b) 12
c) 20
d) 25
a) 0
What is 7/5 as a percentage?
a) 40%
b) 175%
c) 150%
d) 140%
d) 140%
If √x=y2=6, then which of the following is equivalent to x3y4?
a) 66
b) 64
c) 68
d) 67
c) 68
If x2 + 2ax + 81 = 0. When a = 9, what are the solution(s) for x?
x = -9
How many factors do the integers 24 and 81 have in common?
a) 1
b) 2
c) 3
d) 4
b) 2
If x% of 20 is 50, then what is 20% of x?
a) 10
b) 100
c) 50
d) 20
c) 50