Simplify by using the distributive law and combining like terms.7(5x - 3) - 2(x - 2)
A. 21x - 17
B. 33x - 25
C. 33x - 17
D. 33x - 5
Answer: C
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Simplify by combining like terms.3.8x + y + 7.6 - 6.2x - 3.7 - y
A. 2.4x + 11.3 B. -2.4x + 3.9 C. -2.4x + 3.9 + 2y D. -2.4x - 3.9 - y
Solve the problem.Consider a retirement savings account where the monthly contribution is $150 for the first 15 years, is increased to $200 for the next 20 years, and then is increased once again to $250 for the last 10 years. The APR is always 5.1% compounded monthly. What is the value of the account at the end of 45 years? Round your answer to the nearest cent.
A. $364,381.55 B. $367,654.61 C. $368,558.63 D. $359,300.45 E. $363,477.53
Find the volume of the indicated region.The region bounded by the paraboloid 
and the xy-plane
A. 9?
B. 
?
C. 27?
D. 
?
Find the center and the radius of the circle.x2 + y2 - 10x - 12y = 0
A. (5, 0); r = 
B. (6, 6); r = 
C. (5, 6); r = 
D. (5, 6); r = 