Solve the equation.7x3 - 32x2 - 15x = 0
A. x = 0 or x = - 
or x = 5
B. x = 0 or x = 
or x = -5
C. x = - 
or x = 5
D. x = 0 or x = - 
or x = 5
Answer: D
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Find the function represented by the power series. 
A. 
B. - 
C. 
D. - 
A certain tree grows by 2/t + e(-t2/2) feet per year, where t is the time in years. Use Simpson's rule with whole year intervals to estimate the total growth during the stated time interval.From t = 1 to t = 6
A. 5.307 ft B. 3.948 ft C. 6.036 ft D. 5.922 ft
Provide an appropriate response.Al received a promotion at work. His salary was $39,500. His new salary was $59,000. Al's salary increase was $19,500.
A. True B. False
Find the equivalent markup. Round to the nearest tenth of a percent.Markup on cost: 61.5%Markup on selling price: 
A. 69.5% B. 61.9% C. 38.1% D. 30.5%