CCSS.Math.Content.HSA.CED.A.1

Suppose a culture of bacteria begins with 5000 cells and dies by 30% each year. Write an equation that represents this situation.

• y=5000(0.7)^x
• y=30(5000)^x
• y=5000(1.3)^x
• y=5000x^x

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CCSS.Math.Content.HSA.CED.A.1

Speedy Boat Rental charges a $15 deposit fee plus $2 for each hour of use to rent a paddle boat.  Write an equation for C, the total cost, to rent the boat for h hours.

• h = 2C + 15
• C = 15h + 2
• h = 15C + 2
• C = 2h + 15

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CCSS.Math.Content.HSA.CED.A.1

Kyle is looking to buy a shirt for his girlfriend's birthday that normally cost $85.  Lucky for Kyle, the store selling the shirt is having a 30% off sale for all items.  After the discount, Kyle must pay 6% sales tax on the shirt.  How much does Kyle end up spending on this shirt for his girlfriend?

• $27.03
• $63.07
• $59.50
• $54.57

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CCSS.Math.Content.HSA.CED.A.1

- 2k > 18

• k is greater than 20
• k is less than negative 9
• k is greater than negative 9
• k is less than 36 

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CCSS.Math.Content.HSA.CED.A.1

Solve for x.

• 6
• 8
• 10
• 12

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CCSS.Math.Content.HSA.CED.A.1

Olivia would like to buy some new furniture for her home. She decides to buy the furniture on credit with 9.5% interest compounded quarterly. If she spent $7,400, how much total will she have paid after 8 years?

• $15,415.94       LeBron James
• $15,683.28            Chase Utley
• $15,927.56       Serena Williams
• $16,349.72            Tom Brady

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CCSS.Math.Content.HSA.CED.A.1

5 less than  r

• 5 - r
• r - 5
• 5r
• r + 5

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CCSS.Math.Content.HSA.CED.A.1

Solve: 2^x = 4^x+1

• x = -2
• x = 2
• x = -3
• x = 3

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CCSS.Math.Content.HSA.CED.A.1

Steve deposited

$5,000 in a savings account that pays 4% interest compounded annually. Which

equation could be used to find the value of the account after 3 years?

• A = 5,000(1 + 4)³

• A = 5,000(1 + 0.04)³

• A = 5,000(1 + 0.4) x 3

• A = 5,000(0.04)³

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CCSS.Math.Content.HSA.CED.A.1

Compute the sales commission:

Sales amount: $950.00

Commission rate: 10%

• $90.00

• $95.00

• $98.00

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CCSS.Math.Content.HSA.CED.A.1