Find the mean for the data items in the given frequency distribution. Round to the nearest hundredth, if necessary. 

A. 6.79
B. 5.37
C. 8.25
D. 6.19


Answer: A

Mathematics

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Solve the problem.A sports store received a line of bicycles that had a net cost of $83 each. If the store was given a series discount of 40/20, find the list price.

A. $207.50 B. $33.20 C. $172.92 D. $39.84

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Solve the equation and express the solution in exact form.ln ex - ln e7 = ln e4

A. {-3} B. {11} C. {28} D. {3}

Mathematics

Choose the inequality that best matches the given calculator graph.

A. y ? -2x - 2 B. y ? 2x + 2 C. y ? -2x - 2 D. y ? 2x + 2

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Solve the problem.Sue can sew a precut dress in 3 hours. Helen can sew the same dress in 2 hours. If they work together, how long will it take them to complete sewing that dress? Give your answer rounded to one decimal place, if necessary.

A. 2.5 hr B. 1.2 hr C. 5 hr D. 1.8 hr

Mathematics