Solve the problem.P(x) = -x3 + 
x2 - 60x + 100, x ? 5 is an approximation of the total profit (in thousands of dollars) from the sale of x hundred thousand tires. Find the number of hundred thousands of tires that must be sold to maximize profit.
A. 5.5 hundred thousand
B. 5 hundred thousand
C. 4.5 hundred thousand
D. 4 hundred thousand
Answer: B
Mathematics
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Provide an appropriate response.The coinsurance clause in a homeowners insurance policy requires a home to be insured for 
of its 
for full compensation for a loss.
A. 100%, market value B. 75%, replacement cost C. 80%, market value D. 80%, replacement cost
Mathematics
Solve.A boat can go 90 mph in still water. It takes as long to go 280 miles upstream as it does to go downstream 320 miles. How fast is the current?
A. 4 mph B. 5 mph C. 1 mph D. 6 mph
Mathematics
Give two interpretations of the shaded region.
Mathematics
Find the gross earnings.Total sales: 
Returns and Allowances: $315Rate of commission: 13%.
A. $122.06 B. $478.01 C. $396.11 D. $437.06
Mathematics