Use the following graph which shows the monthly sales of a heating supplier. 
What was the percent of decrease in sales from January to March?
A. 18.4%
B. 32.9%
C. 22.6%
D. 28%
Answer: A
Mathematics
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Find the reciprocal of the number.
A. 
B. - 
C. gz
D. - 
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Solve the problem.The number of bacteria growing in an incubation culture increases with time according to 
where x is time in days. Find the number of bacteria when x = 0 and x = 3.
A. 8700, 34,800 B. 8700, 52,200 C. 17,400, 69,600 D. 8700, 69,600
Mathematics
Multiply.4(975)
A. 3910 B. 3900 C. 4000 D. 3800
Mathematics
Given the values of x and y, find an equation of variation in which y varies directly as x.y = 2.8, when x = 1.6
A. y = 2.8x
B. y = 
x
C. y = 
D. y = 1.75x
Mathematics