Finals Review- 7th grade

Inequalities

100

x + 7 > 10

x > 3

200

34 < -17n

n < -2

300

77 > -11a

a > -7

400

x - 20 is greater than or equal to -45

x is greater than or equal to -25

500

x + 2 is greater than or equal to 19

x is greater than or equal to 17

Exponents

100

n³ x n² 

n⁵

200

3p³ x 4p⁴

12p⁷

300

6r x r

6r²

400

5b³ x 5b⁶

25b9

500

8m⁵ x 8m⁵

64m¹⁰

square roots

100

What is the square root of 49?

7

200

What is the square root of 37 (to the nearest whole number)

6

300

What is the square root of 125? 

(to the nearest whole number)

11

400

-(square root of 100)

-10

500

-(square root of 130)

to the nearest whole number

11

proportions

100

2/3 = m/6

m=4

200

5/p = 4/8

p = 10

300

n/11 = 11/8

to nearest hundredth

15.12

400

10/n = 5/7

n = 14

500

4/2n = 4/6

n=3

Percents

100

12% of what is 28?

to nearest tenth

233.3

200

What percent of 141 is 127?

90%

300

What is the percent of change from 10 to 4?

and...is it increase or decrease?

60% decrease

400

What percent of 112 is 36? 

(Round to nearest tenth)

32.14

500

Original price of a jacket is $52.00

It is on sale, discounted by 15%

What is the new price?

$44.20