Solve the problem. Assume that simple interest is being calculated in each case. Round your answer to the nearest cent.John Lee's savings account has a balance of $441. After 27 months, what will the amount of interest be at 5.1% per year?
A. $50.61
B. $16.33
C. $22.49
D. $49.50
Answer: A
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Find the least common denominator (LCD).
, 
A. 4(x + 4)(x + 6) B. 4(x + 4)(x - 6) C. 4(x - 4)(x - 6) D. 4(x - 4)(x + 6)
Solve the problem.A job pays a salary of 35,000 the first year. During the next 5 years, the salary increases by 5% each year. What is the salary for the 6th year? What is the total salary over the 6-year period? (Round to the nearest cent.)
A. $44,669.85; $193,397.09 B. $46,903.35; $284,970.30 C. $44,669.85; $238,066.95 D. $46,903.35; $193,417.09
Add or subtract the functions, as indicated.P(x) = x3 - 9x - 20, Q(x) = 3x3 + x2 + 4x + 14; Find (P + Q)(x).
A. 4x3 + x2 - 13x - 34 B. 4x3 - x2 - 5x + 6 C. 4x3 + x2 - 5x - 6 D. 3x3 + x2 - 5x - 6
Find the inverse matrix of A.A = 
A. 
B. 
C. 
D. 