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If a = 60(99)⁹⁹ + 30(99)⁹⁹, b = 99¹⁰⁰, and c = 90(90)⁹⁹, then which of the following expresses the correct ordering of a, b, and c?

• c < b < a

• b < c < a

• a < b < c

• c < a < b

Tags

CCSS.4.NBT.A.2

For all real numbers x and y, 4x(x) - 3xy(2x) =

• 12x²y(x - 2y)

• 2x²(2 - 3y)

• 2x²(2 + 3y)

• 4xy(x - 3y)

Tags

CCSS.7.EE.A.1

Carlos began with twice as much money as David had. After Carlos gave $12 to David, Carlos still had $10 more than David. How much money did they have combined at the start?

• $34

• $68

• $102

• $108

Tags

CCSS.8.EE.C.8C

On a typical day, a restaurant sells n grilled cheese sandwiches for p dollars each. Today, however, the manager reduced the price of grilled cheese sandwiches by 30% and as a result sold 50% more of them than usual. Which of the following represents the revenue for today's grilled cheese sandwich sales, in dollars?

• 0.5np - 0.3

• 1.05np

• 1.20np

• 1.50np

Tags

CCSS.8.EE.C.7B

Which of the following is equivalent to 3m(m² x 2m) for all real values of m?

• 3m² + 6m

• 3m² x 6m

• 3m³ x 6m²

• 6m⁴

Tags

CCSS.7.EE.A.1

Simplify
(1/3)(21m + 27)

• 63m + 9
• 7m + 9
• 7m + 81
• 7m + 27

Tags

CCSS.6.EE.A.3

Find x and y.

• x = 16 and y = 40

• x = 67 y = 40

• x = 113 and y = 63

Tags

CCSS.7.G.B.5

Simplify the following.

• 
• 
• 6abc

• 9abc²

Find x.

• x = 2

• x = 8

• x = 10

• x = 3

Tags

CCSS.8.G.A.5

Simplify:
(2x²+4x+7)-(x²+3x+4)

• x²+x+3
• x+x+3
• 2x+x+3
• x²-x+3

Tags

CCSS.HSA.APR.A.1