Solve the problem.When making a long distance call from a certain pay phone, the first three minutes of a call cost $2.45. After that, each additional minute or portion of a minute of that call costs $0.50. Find the maximum number of minutes one can call long distance for $11.95.

A. at most 5 minutes
B. at most 22 minutes
C. at most 30 minutes
D. at most 19 minutes


Answer: B

Mathematics

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State whether the following involves permutations or combinations. It is not necessary to solve the problem.A record club offers a choice of 7 records from a list of 45. In how many ways can a member make a selection?

A. Combination B. Permutation

Mathematics

Find the length of the indicated portion of the trajectory.r(t) = (2cos t)i + (2sin t)j + 7tk, 0 ? t ? ?/2

A. ?
B. ?
C. ?
D. ?

Mathematics

Graph each system of inequalities and shade the portion of the graph represented by the solution set..

A.

B.

C.

D.

Mathematics

Provide an appropriate response.Solve the word problem using a system of equations with two unknowns:The area of a rectangular playground is 15,390 ft2. The perimeter is 514 ft. Find the length and width of the field.

What will be an ideal response?

Mathematics