spiral review math 8 8.1, 8.2, 8.3, 8.14, 8.17, 8.18

The area of a square rug is 324 square feet. What is the length of each side of the rug?

• 162 ft

• 81 ft

• 18 ft

• 9 ft

Tags

CCSS.8.EE.A.2

What is 8.03 x 10^-4 in standard form?

• 0.0803

• 0.000803

• 80,300

• 0.0000803

Tags

CCSS.8.EE.A.3

Which set contains only rational number?

• -4, 9.9 , √2 , 0

• 1/3, 0.33̅3, 0, √36

• π, 0.25, 15% , -15

• 3.1 x 10³, -1/8, √16, -5

Mrs. Schools has a 30% off coupon from JANE Bryant's department store. She wants to buy a coat that regularly costs $85.40. How much will the coat cost after the coupon is applied?

• $25.62

• $55.40

• $111.02

• $59.78

Mr. King 's lunch bill from Popeyes was $20. The local sales tax is 7%. What is the sales tax amount?

• $1.40

• $21.40

• $14.00

• $2.00

Tags

CCSS.6.RP.A.3C

Billy has $750 in his savings account. His account earns 2.4% annual interest. How much interest will Billy earn in 15 months?

• $270

• $772.50

• $1.25

• $22.50

Tags

CCSS.7.RP.A.3

A recliner that regularly costs $175 is on sale for $131.25. What is the percent discount on the recliner?

• 15%

• 33.33%

• 25%

• 43.75%

Tags

CCSS.6.RP.A.3C

Simplify -3x + 2(4x +6) -10

• 3x - 2

• 11x + 2

• 5x - 2

• 5x + 2

Tags

CCSS.6.EE.A.3

Lucy bought a computer that originally is $814.59, newly priced at $775.80 . What is the percent of change?

• 15%

• 5%

• 50%

• 0.5%

Tags

CCSS.6.RP.A.3C

Lashley has a bank account that earns %5 every year. At the end of one year she earned $32.50 in interest. How much was the amount she deposited?

• $65

• $650

• $162

• $66.50

Tags

CCSS.7.RP.A.3