Solve the problem.You withdraw $55 a week from a savings account for 7 weeks. What is the overall change in the account?
A. $385
B. $62
C. -$385
D. -$62
Answer: C
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Find the quotient.
A. 2x + 4x2 - 
B. 4x2 + 8x - 9
C. 2x2 + 8x - 9
D. 2x2 + 4x - 
Find the ordinary interest or exact interest as specified. Round to the nearest cent.Robert Hall opened a maid service company. To pay for startup costs, he borrowed $76,000 from a bank at 8% for 1 year. Find the ordinary interest.
A. $6080 B. $82,080 C. $6840 D. $608
Write the product as a sum or difference containing only sines or cosines.sin(4?) cos(5?)
A. 
[cos(9?) + sin ?]
B. sin cos(20?2)
C. 
[cos(9?) - cos ?]
D. 
[sin(9?) - sin ?]
A manmade lake located in Lake View Condominiums has the shape depicted in the following figure. The measurements shown were taken at 10-ft intervals. Using Simpson's rule with 
, estimate the surface area of the lake. Round the result to the nearest tenth.
?
?
A. 
B. 
C. ?
D. ?