Express the exercise as a system of linear equations, then find the solution. Use a calculator where appropriate.Julie and Eric row their boat (at a constant speed) 32 miles downstream for 4 hours, helped by the current. Rowing at the same rate, the trip back against the current takes 8 hours. Find the rate of the current.
A. 3 mph
B. 6 mph
C. 1.5 mph
D. 2 mph
Answer: D
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Provide an appropriate response.In a graduated payments mortgage, the payments 
, while in an adjustable-rate mortgage, the rates 
.
A. become larger, may change up or down B. become smaller, may change up or down C. become smaller, likely will go up D. become larger, likely will go down
Choose the function that might be used as a model for the data in the scatter plot.
A. Exponential, f(x) = ab-x or f(x) = P0e-kx, k > 0 B. Exponential, f(x) = abx or f(x) = P0ekx, k > 0 C. Logarithmic, f(x) = a + b ln x D. Quadratic, f(x) = ax2 + bx + c
Answer the question.Give a definition of Domain.
What will be an ideal response?
Compute the compound interest.How long must $5500 be in a bank at 8% compounded annually to become $16,154.56? (Round to the nearest year.)
A. 14 yr B. 13 yr C. 16 yr D. 15 yr