Solve the problem.Gary can hike on level ground 3 miles an hour faster than he can on uphill terrain. Yesterday, he hiked 37 miles, spending 2 hours on level ground and 5 hours on uphill terrain. Find his average speed on level ground.
A. 5
mph
B. 7
mph
C. 7
mph
D. 4
mph
Answer: C
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Sketch the graph of the function and find the domain and range.f(x) = -x2 - 3
A. domain: all real numbers
range: y ? 3
B. domain: all real numbers
range: y ? -3
C. domain: x ? -3
range: y ? 0
D. domain: all real numbers
range: y ? -3
Find the absolute maxima and minima of the function on the given domain.
on the closed triangular region bounded by the lines 
and 
A. Absolute maximum: 136 at 
absolute minimum: 90 at 
B. Absolute maximum: 90 at 
absolute minimum: 40 at 
C. Absolute maximum: 136 at 
absolute minimum: 0 at 
D. Absolute maximum: 90 at 
absolute minimum: 0 at 
Use the integral test to determine whether the series converges.
A. diverges B. converges
Find the amount of sales tax or tax rate and the total cost. Round money answers to the nearest cent if necessary.Amount of sale: $173 Tax rate: 9%
A. $13.84, $186.84 B. $15.57, $188.57 C. $17.30, $190.30 D. $155.70, $328.70