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Frank T.
Graduate Engineer with 4+ Years of Tutoring Experience
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Pre-Algebra
TutorMe
Question:

A cell phone company charges a monthly rate of \$12.95 and \$0.25 a minute per call. The bill for m minutes is \$21.20. Write an equation that models this situation.

Frank T.

m = Number of Minutes Billed 0.25m + 12.95 = 21.20

Calculus
TutorMe
Question:

Frank received a salary of \$45,000 per year. In addition, he receives 7% of his sales amount for the year. What are the sales amounts that will allow him to earn more than \$56,900 per year?

Frank T.

Frank = \$45,000/Yr (Base) Expected Earnings = \$56,900/Yr Base + .07 (Sales Amount) X = Annual Sales Amount = 45,000 + .07x > 56,900

Algebra
TutorMe
Question:

Bill has (A) chocoloates, and (B) drinks. Brian has four fewer chocolates than Bill, but twice as many drinks. Write an expression for Brian's snacks.

Frank T.

Brian has four fewer chocolates than Bill = A - 4 Brian has twice as many drinks = 2 x B A - 4 + 2 x B => A - 4 + 2D

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