Solve the problem.Dave can hike on level ground 3 miles an hour faster than he can on uphill terrain. Yesterday, he hiked 38 miles, spending 2 hours on level ground and 5 hours on uphill terrain. Find his average speed on level ground. Round to the nearest tenth when necessary.
A. 4.6 mph
B. 5.4 mph
C. 8 mph
D. 7.6 mph
Answer: D
Mathematics
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A. 10
B. 10
C. 5
D. 6
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Simplify the exponential expression.
A. -12,500
B. 5
C. 
D. 
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Reduce the fraction by finding a common factor in the numerator and in the denominator and dividing by the common factor.
A. 
B. 
C. 
D. 
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For a given commodity and pure competition, the number of units produced and the price per unit are determined as the coordinates of the point of intersection of the supply and demand curves. Given the demand curve
and the supply curve
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