Solve the problem.A small business owner made $60,000 the first year he owned his store and made an additional 
over the previous year in each subsequent year. Find how much he made during his fourth year of business. Find his total earnings during the first four years. (Round to the nearest cent, if necessary.)
A. $7.50; $63,157.50
B. $202,500.00; $487,500.00
C. $69,457.50; $258,607.50
D. $303,750.00; $791,250.00
Answer: C
Mathematics
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Solve the problem.Find the derivative of the function 
at the point 
in the direction in which the function decreases most rapidly.
A. -
B. -
C. -
D. -3
Mathematics
Solve the problems.A car rental agency advertised renting a luxury, full-size car for $34.95 per day and $0.39 per mile. If you rent this car for 3 days, how many whole miles can you drive if you only have $200 to spend.
A. 21 mi B. 66 mi C. 243 mi D. 415 mi
Mathematics
Evaluate.x + 9.6 for x = -0.92
A. 8.68 B. 8.58 C. -8.68 D. 10.52
Mathematics
Solve the problem.z varies jointly as x and y. Find z when x = 35, y = 14, and k = 5.
A. z = 490 B. z = 98 C. z = 2 D. z = 2450
Mathematics