Solve the problem.The hydrogen ion concentration of a substance is about 8.6 x 10-8 moles per liter. Find the pH. Round to the nearest tenth. Use the formula pH = -log [H+].
A. 7.1
B. -8.9
C. 8.9
D. 7.5
Answer: A
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Write the fraction in lowest terms.- 
A. 
B. - 
C. - 
D. 
Solve the problem.The manager at a local pizza place wants to cut and package pepperoni slices. Each medium pizza has 5 slices of pepperoni and each large pizza takes 8 slices of pepperoni. What is the smallest number of slices in each package so there will be none left when making any combination of large or medium pizzas.
A. 20
B. 80
C. 40
D.
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Which of the following statements about operating breakeven analysis is correct?
A. Operating breakeven analysis involves determining the level of production and sales at which net operating income is equal to one. B. Operating breakeven analysis involves determining the point at which sales revenues equal operating costs. C. Operating breakeven analysis involves determining the level of production and sales at which financing costs are recovered. D. Operating breakeven analysis involves determining the operating income the firm needs to generate to cover all of its financing costs. E. Operating breakeven analysis involves the analysis of the interest payments to bondholders and the dividend payments to preferred stockholders.
Graph the function. Describe its position relative to the graph of the indicated basic function.f(x) = 3x - 1; relative to f(x) = 3x
A. Moved up 1 unit(s)
B. Moved down 1 unit(s)
C. Moved down 1 unit(s)
D. Moved up 1 unit(s)