Solve the inequality.70(x2 - 1) > 51x
A. 
or 
B. 
or 
C. 
D. 
Answer: A
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Solve the problem.John is paid a weekly salary of $380 plus 4% of his sales. Draw a graph in which sales are measured on the horizontal axis and wages on the vertical axis. Then use the graph to estimate John's sales if his week's pay is $530.
A. About $3745 B. About $3757 C. About $3760 D. About $3750
Determine whether the relation is a function.{(-1, -4), (3, 2), (6, 5), (7, -4), (10, -9)}
A. Function B. Not a function
Solve.When a principal P earns an annual interest rate r compounded yearly, the amount A after t years is A = P(1 + r)t. How long will it take for a principal to double at 9% compounded annually? Round to the nearest whole year.
A. t ? 9 years B. t ? 5 years C. t ? 8 years D. t ? 7 years
Find the least common denominator (LCD).
, 
A. (10x - 9)(10x + 9) B. 7x(3x + 20) C. (10x - 9) or (10x + 9) D. 7x(3x + 20)(10x - 9)(10x + 9)