Solve the problem.The median weekly incomes of full-time male workers for various age groups are listed in the table below. 
(Source: Bureau of Labor Statistics, 4th quarter of 1999 data)Let M represent the median weekly income (in dollars) of men at age a years. Here is the quadratic regression equation for M: M = -0.55a2 + 52.01a - 456.46Use this model to determine at what age(s) the median weekly income of men is equal to $700.
A. 36, 61
B. 36, 59
C. 37, 58
D. 35, 60
Answer: B
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Simplify the radical expression by factoring out the largest perfect nth power. Assume that all variables are positive.- 
A. -6xy
B. -6xy
C. 6xy
D. xy
Write the ratio as a fraction in lowest terms.$15 : $48
A. 
B. 
C. 
D. 
Solve the equation in part (a) graphically, expressing the solution to the nearest hundredth. Then, use the graph to solve the associated inequalities in parts (b) and (c), expressing endpoints to the nearest hundredth.(a) 
= 0; (b) 
> 0; (c) 
< 0
A. (a) ? (b) (-?, 0.61) (c) (-0.61, ?) B. (a) {-0.61} (b) (-0.61, ?) (c) (-?, 0.61) C. (a) ? (b) (-0.61, ?) (c) (-?, -0.61) D. (a) {-2.65, 2.65} (b) (-?, 0.61) (c) (-0.61, ?)
Write the system of linear equations that the augmented matrix represents. Use the variables x, y, and z.
A. 14x + 8y = 9 9x + 3y = 5 B. 8x + 14y = 9 3x + 9y = 5 C. 8x + 14y = -9 9x + 3y = -5 D. 8x + 14y = 9 9x + 3y = 5