Solve the problem.Julie and Eric row their boat (at a constant speed) 16 miles downstream for 2 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. 5 mph
B. 2.5 mph
C. 4 mph
D. 3 mph
Answer: D
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Determine whether the function is one-to-one. If so, find a formula for the inverse.h(x) = x3 + 3
A. h-1(x) = 
- 3
B. h-1(x) = 
C. h-1(x) = 
D. Not a one-to-one function
Find the value of a $1,000 certificate in 3 years, if the interest rate is 14% compounded annually. ? Please round the answer to the nearest cent. ? $ __________
Fill in the blank(s) with the appropriate word(s).
Convert the following to degrees and minutes. Round to the nearest minute. ? 34.7° ?
A. 34°37' B. 34°7' C. 34°41' D. 34°45' E. 34°42'
Solve the problem. Over a period of 1 year, the price P of a certain commodity follows the model 
where P is in dollars per pound and t is in months. Assume that 
and 
Find the particular solution P.
A. P = 3e-0.3t + 13e0.2t; B. P = 3e0.2t + 13e-0.3t; C. P = 16e-0.3t + 1.7e0.2t; D. P = 3e0.3t + 13e-0.2t;