Solve the problem.In a distant galaxy the gravity of planet A is 217 times as strong as the gravity of planet B, so objects on planet A weigh 217 times as much as they weigh on planet B. If the object weighs 
on planet A, how much does it weigh on plant B?
A. 149 lb.
B. 132 lb.
C. 139 lb.
D. 1390 lb.
Answer: C
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Solve the problem that involves probabilities with independent events.A spinner is used for which it is equally probable that the pointer will land on any one of six regions. Three of the regions are colored red, two are colored green, and one is colored yellow. If the pointer is spun three times, find the probability it will land on green every time.
A. 
B. 
C. 
D. 
Identify where f is increasing or where f is decreasing, as indicated. Round your answer to two decimal places when appropriate.f(x) = 
; increasing
A. (-?, ?) B. [-0.80, 0.80] C. (-?, 0.80] D. [0.80, ?)
Solve the system using determinants.2x + y + 2z = -4-x - 3y + 2z = -6-5x - 5x - 2z = 2
A. (-4, 2, -2) B. (-1, 0, -1) C. infinite number of solutions D. no solution
Insert parentheses, if needed, to make the expression on the left equal to the number on the right.8 ? 8 + 4 ÷ 3 + 3 = 16
A. 8 ? 8 + 4 ÷ (3 + 3) = 16 B. 8 ? 8 + (4 ÷ 3) + 3 = 16 C. 8 ? (8 + 4) ÷ (3 + 3) = 16 D. 8 ? (8 + 4) ÷ 3 + 3 = 16