Solve the problem.A ladder is resting against a wall. The top of the ladder touches the wall at a height of 6 ft. Find the length of the ladder if the length is 2 ft more than its distance from the wall.
A. 10 ft
B. 6 ft
C. 8 ft
D. 12 ft
Answer: A
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Solve the problem. Round your answer, if appropriate.The volume of a rectangular box with a square base remains constant at 900 cm3 as the area of the base increases at a rate of 2 
2/sec. Find the rate at which the height of the box is decreasing when each side of the base is 12 cm long. (Do not round your answer.)
A. 
cm/sec
B. 
cm/sec
C. 
cm/sec
D. 
cm/sec
Factor the difference of squares.49x2 - 81
A. (7x + 9)2 B. (7x + 9)(7x - 9) C. (7x - 9)2 D. Prime
Perform the operation. Write the answer as a fraction in lowest terms.
÷ 
A. 
B. 
C. 
D. 
Solve.Angela borrowed $3400 at a simple interest rate of 18%.(a) How much interest did she pay in fourteen months?(b) How much interest did she pay in two years?
A. (a) $714 (b) $1836 B. (a) $714 (b) $1224 C. (a) $8568 (b) $1224 D. (a) $1428 (b) $1836