Quiz Review on Multiple Math Area

1. 1. Which expression represent "twice the sum of a number and 9?

• 2x+9

• 2(x+9)

• 2x+18

• x+18

Tags

CCSS.7.EE.A.2

CCSS.HSA.SSE.A.2

2. 2. Solve 3x-6/4 = 5

• x=8

• x=10

• x=26/3

• x=12

Tags

CCSS.7.EE.B.4A

3. 3. What is the area of a circle with radius 5 units?

• 25π square units

• 10π square units

• 15π square units

• 20π square units

Tags

CCSS.7.G.B.4

If a triangle has angles measuring 65° and 45°, what is the measure of the third angle?

• 70°

• 80°

• 75°

• 85°

Tags

CCSS.8.G.A.5

5. 5. What percent of 80 is 20?

• 40%

• 25%

• 15%

• 20%

6. 6. Which pair of ratios forms a proportion?

• 3/4 and 9/12

• 2/3 and 3/4

• 5/6 and 7/8

• 1/2 and 2/5

Tags

CCSS.7.RP.A.2A

7. 7. What is the slope of a line passing through points (2,3) and (4,7)?

• 3

• 2.5

• 4

• 2

Tags

CCSS.8.EE.B.5

8. 8. Simplify: -3(-2+5)

• -9

• 9

• -1

• 1

Tags

CCSS.7.NS.A.1D

9. 9. Which is equivalent to 3x²y?

• 3xy²

• (3x)²y

• 3 ⋅ x ⋅ x ⋅ y

• 3x ⋅ 2y

10. A store marks down a $60 shirt by 30%. What is the sale price?

• $18

• $42

• $30

• $70

Tags

CCSS.6.RP.A.3C