Solve the problem.The weekly sales in thousands of items of a product has a seasonal sales record approximated by 
(t is time in weeks with 
referring to the first week in the year). During which week(s) will the sales equal 86,400 items?
A. week 21 and week 30
B. week 4, week 20, and week 52
C. week 30 and week 47
D. week 4 and week 47
Answer: B
Mathematics
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A graph of y = f(x) follows. No formula for f is given. Graph the given equation.y = 
f(x - 1) + 3
?
A. 
B. 
C. 
D. 
Mathematics
Graph the function.f(x) = x3 - 3
A. 
B. 
C. 
D. 
Mathematics
Solve the system of equations by the substitution method. Check your solutions. For any dependent equations, write your answer in ordered pair form.
A. {(8, 5)} B. {(-8, 5)} C. {(8, -5)} D. {(-8, -5)}
Mathematics
Solve the problem.The weight W of an object on the Moon varies directly as the weight E on earth. A person who weighs 
on earth weighs 25.2 lb on the Moon. How much would a 175-lb person weigh on the Moon?
A. 326.2 lb B. .2 lb C. 35 lb D. 875 lb
Mathematics