Simplify.-
A. - 
B. - 
C. - 
D. - 
Answer: B
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Use the four-step method in problem solving to solve the problem.CD's were purchased at $65 per dozen and sold at $40 for four CD's. Find the profit on 9 dozen CD's.
A. $25 B. $55 C. $495 D. $225
Solve the problem.A rectangular swimming pool has a parabolic drain plate at the bottom of the pool. The drain plate is shaped like the region between y = 
x2 and the line y = 
from x = -1 to x = 1. The pool is 10 ft by 20 ft and 8 ft deep. If the pool is being filled at a rate of 
what is the force on the drain plate after 4 hours of filling? Round your answer to two decimal places if necessary.
A. 153.92 lb B. 486.72 lb C. 166.4 lb D. 76.96 lb
Provide an appropriate response.Solve the system of equations using the addition method: 4x - y = 9 -x + y = -3
A. x = -1, y = 2 B. x = 2, y = -1 C. x = -1, y = -5 D. x = 5, y = 2
List the ordered pairs of the points on the grid. x
A. G = (3, 4), H = (-4, 4) B. G = (3, -4), H = (-6, 4) C. G = (-4, 22), H = (4, -6) D. G = (3, -4), H = (4, -6)