Solve the problem.Find the number of units, x, that produces the maximum profit P, if C(x) = 10 + 28x and
A. 28 units
B. 112 units
C. 18 units
D. 72 units
Answer: C
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Find the product. Assume that all variable factors in the denominator are not equal to zero.
? 
A. 
B. 
C. 
D. 12z
Find the value(s) of the variable for which the rational expression is undefined.
A. none B. -9 C. 0 D. 9
Solve the problem.A woman borrowed $20,000 at 14% interest compounded annually. If the loan was paid off at the end of 4 years, how much did she pay? Round your answer to the nearest cent.
A. $31,200.00 B. $22,800.00 C. $13,779.20 D. $33,779.20
Solve the problem.A caterer uses special stacking ovens to prepare large amounts of food. Find the total number of servings that can be prepared in one hour.Pizza: 4 servings per panNumber of pans per oven: 6Pan changes per hour: 4Number of ovens: 3
A. 96 servings B. 288 servings C. 72 servings D. 238 servings