STAAR Review Quiz Final

Stephanie deposits $10,000 into each of two savings accounts:

- Account 1 earned 4.8% annual simple interest over a 2 year period

- Account 2 earned 6% annual simple interest over an 36 month period

Stephanie does not make any other deposits or withdrawals. What is the difference in the amount of interest earned between account 1 and account 2 by the end of each period?

• $840

• $860

• $640

• $940

The total cost of attending Texas Tech for one year is $25,000. Angel has a scholarship that will pay for 80% of his expenses and grants that total $1,400. What is the minimum amount he needs to save every month over the next 2 years in order to be able to afford his first year of college?

• $150

• $100

• $80

• $250

Raquel invested $8,000 into an account that pays 12% interest compounded annually. What will the balance of her account be after ten years?

• $24,846.79

• $26,460.24

• $16,846.78

• $12,460.24

Tyreek invested $12,000 into an account that pays 14.5% simple interest annually. What will the balance of his account be after ten years?

• $29,400

• $28,600

• $17,400

• $18,400

Mike created a cone that has a diameter of 8 feet and a height of 3 feet. Find the volume of this cone.

• 50.27 ft³

• 150.72 ft³

• not here

• 192.65 ft³

Find the volume of the sphere. 

• 972π 
• 729π
• 108π
• 2,916π

• V

Find the total surface area of the prism.

• 161 square feet
• 1,700 square feet
• 75 square feet
• 186 square feet

A cone has a volume of 380.1 cubic centimeters and a diameter of 11 centimeters. What is the approximate height of the cone?

• 12 cm

• 8 cm

• 5.5 cm

• 15 cm

Find the lateral surface area of the figure.

• 96 ft²

• 192 ft²

• 84 ft²

• 108 ft²