find the percent of change from 12-4
about 67%
Simplify the following expression: 2(x + 7)
2x + 14
Solve b-6>3
b>9
What is the diameter of the circle if the radius 2.5?
5
What is 20% of 200?
40
Sample space of rolling a number cube.
(1,2,3,4,5,6)
what is an outlier?
A data point that is very different from the rest of the group.
Simplify the following expression: -4x - 7x + 9
-11x + 9
Solve 2x+4≥12
x≥4
Area of a trapezoid with bases 4 and 18 and height of 7.
77

What is the constant of proportionality?
15
A bag contains 5 red marbles, 3 blue marbles, and 2 green marbles. One marble is chosen at random.
What is the probability of picking a blue marble?
0.3 or 30% or 3/10
Name 3 quadrilaterals (4 sided polygons)
Possible answers
square, rhombus, trapezoid, rectangle, parallelogram,
what is the value of 2a-7 if a=10
13
solve for x
3x-15=15
10
A circular swimming pool has a radius of 7 meters.
What is the approximate area of the pool?
153.86
A shirt costs $40 and is marked up 20%.
What is the new price of the shirt?
48
A coach recorded the number of points scored by players in a game:
12, 15, 18, 12, 20, 25, 18, 12, 30, 15
Find the mode and the range
write 27/4 as a decimal
6.75
Simplify 2a+10+8a-3
10a+7
Sarah bought a magazine for $10 and four identical erasers. If she spent a total of $18, how much did each eraser cost?
$2.00
A city is building a circular fountain in a park. The fence around the fountain measures 62.8 feet all the way around.
What is the diameter of the fountain?
20 ft
A pair of shoes costs $160 and is on sale for 25% off. What is the sale price?
$120
Find the median 14, 9, 21, 7, 18, 10, 1
1, 7, 9, 10, 14, 18, 21
Median 10
A bakery uses 5 cups of sugar to make 20 brownies. How many cups of sugar are needed to make 32 brownies?
8
What is the value of 10a+2b2 if a=-2 and b=5
30
Solve this 5x+10=35
5
Calculate the volume of a cylinder with a radius of 5 and height of 8.
use pi=3.14
628
A model car is built using a scale of 1 inch for every 6 feet of the real car’s length.
If the real car is 48 feet long, how long should the model car be?
8
A teacher records the number of minutes students studied in one night:
5, 12, 8, 20, 15, 10, 7,16
Find the first quartile (Q1) of the data set.
5, 7, 8, 10, 12, 15, 16, 20
1st Quartile=7.5