Assume that the expressions given are the denominators of fractions. Find the least common denominator. 50x5y , 90x4y3 , 45x2y4
A. 450x5y4
B. 90x5y
C. 225x20y12
D. 150x5y4
Answer: A
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Factor completely.5x2 + 53x + 72
A. (5x + 8)(x + 9) B. (x - 63)(x + 9) C. (x + 8)(x + 9) D. (5x - 63)(x + 9)
Solve the problem.Coyotes are one of the few species of North American animals with an expanding range. The future population P of coyotes in a region of Mississippi can be modeled by the equation 
, where t is time in years. How long will it take for the population to reach 140? Round your answer to the nearest tenth, if necessary.
A. 8.2 years B. 8.4 years C. 8.3 years D. 5517 years
Determine the most appropriate metric unit to go in the blank. Choose from km, m, cm, mm, L, mL, kg, g, and mg.The portion of fish weighs 145 
.
A. mm B. kg C. mL D. g E. mg
Round the decimal to the given place value.-0.0354, nearest thousandth
A. -0.0354 B. 0 C. -0.04 D. -0.035