Find the commission earned or the rate of commission. Round money answers to the nearest cent if necessary.Sales: $550  Commission rate: 8%

A. $38.5
B. $49.50 
C. $44.00 
D. $440.00 


Answer: C

Mathematics

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Evaluate the function.Find f(k - 1) when f(x) = 5x2 - 2x - 1

A. f(k - 1) = 5k2 - 12k + 6 B. f(k - 1) = -12k2 + 5k + 6 C. f(k - 1) = 5k2 - 7k + 2 D. f(k - 1) = 5k2 - 12k + 2

Mathematics

Write an algebraic equation and use it to solve the problem.During a road trip, Tonya drove one-third the distance that Lana drove. Mark drove 24 miles more than Lana. The total distance they drove on the trip was 367 miles. How many miles did each person drive?

A. Tonya drove 441 miles, Lana drove 147 miles, and Mark drove 123 miles. B. Tonya drove 147 miles, Lana drove 441 miles, and Mark drove 465 miles. C. Tonya drove 41 miles, Lana drove 123 miles, and Mark drove 147 miles. D. Tonya drove 49 miles, Lana drove 147 miles, and Mark drove 171 miles.

Mathematics

Solve the system using the inverse of the coefficient matrix of the equivalent matrix equation. 9x + 6y -  z = 75  x - 2y - 6z = -66 9x +  y +  z = 53

A. {(4, 9, 8)} B. {(-4, 8, 8)} C. {(4, 8, 9)} D. ?

Mathematics

Find the product and write the answer in simplest form. Assume variables represent nonnegative values. ? 

A.
B.
C.
D.

Mathematics