Number Sense
Evaluate: -18+25
7
Solve: x + 9 = 17
x = 8
What is the slope of y = 4x − 3?
4
Two angles of a triangle are 55° and 65°. Find the third angle.
60
Find the mean: 6, 8, 10, 12
9
What is 3/4 of 48?
36
Solve: 3x − 5 = 16
x = 7
If f(x) = 3x + 5, find f(−2).
−1
Find the area of a rectangle that is 12 units by 7 units.
84 square units
A bag has 5 red, 3 blue, and 2 green marbles. P(red)?
½ or 50%
Simplify: 23 x 24
27 = 128
Solve: 2(x − 4) + 3 = 15
x = 10
Find the slope through (2, 5) and (6, 13).
2
Find the hypotenuse of a right triangle with legs 9 and 12.
15
A $80 item is 25% off. What is the sale price?
$60
A price rises from $80 to $92. What is the percent increase?
15%
Solve the system: y = 2x + 1 and y = −x + 7
(2, 5)
Find the 20th term: 7, 12, 17, 22, …
102
Find the distance between (−2, 3) and (4, 11).
10 units
Find the simple interest on $1,200 at 5% for 3 years.
$180
Which is greatest: −√49, −6.5, −6, or −5.8?
−5.8
Solve: |2x − 6| = 10
x = 8 or x = −2
State the vertex of y = (x − 3)² − 4.
(3, −4)
Each exterior angle of a regular polygon is 24°. How many sides?
15 sides
Plan A: $25 + $0.10 per text. Plan B: $10 + $0.25 per text. When are costs equal?
100 texts