Solve the problem.An element decays at the rate of S(t) = se-0.043t, where s is the initial amount in grams and t is the time in years since this initial amount was present. If you have a 80-gram piece of this element, how many grams will you have 5 years from now? Round to the nearest tenth of a gram.
A. 99.2 g
B. 64.5 g
C. 0.8 g
D. 38.3 g
Answer: B
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Determine if the system has no solution or infinitely many solutions. If the system has infinitely many solutions, describe the solution with the equation of a plane or an ordered triple in terms of one variable.
A. 
B. 
C. 
D. no solution
Find the x- and y-intercepts of f.f(x) = (x + 1)(x - 9)(x - 1)2
A. x-intercepts: -1, 1, 9; y-intercept: 9 B. x-intercepts: -1, 1, -9; y-intercept: 9 C. x-intercepts: -1, 1, -9; y-intercept: -9 D. x-intercepts: -1, 1, 9; y-intercept: -9
Solve the problem.Find the area A and circumference C of a circle of radius 7 mi. Express the answer in terms of ?.
A. A = 196? mi2; C = 7? mi B. A = 49? mi2; C = 14? mi C. A = 28? mi2; C = 7? mi D. A = 14? mi2; C = 14? mi
Given the graph of the function f(x), find a formula for g(x) in terms of f.f(x)g(x)
?
A. g(x) = 2f(x)
B. g(x) = f(x + 2)
C. g(x) = f(x) + 2
D. g(x) = 
f(x)