Solve the problem.The average amount of money spent on laundry soap in 2006 by a family of three was $800. While the average amount of money spent by a family of four was $4000. Find the average rate of change of money spent on laundry soap with respect to family size.
A. $1.60 per person
B. $320.00 per person
C. $3200.00 per person
D. -$3200.00 per person
Answer: C
Mathematics
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A. 0 and 8 B. -8 C. 0 and -8 D. 0
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Use the change-of-base formula to find the logarithm. Round your answer to four decimal places. log5 19.35
A. 1.2867 B. 1.8408 C. 0.5432 D. 3.8700
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Solve the equation.-4x + 9 = 9 - 4x
A. 0 B. no solution C. all real numbers D. 9
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Determine whether the equation defines y as a function of x. y = x2
A. function B. not a function
Mathematics