Solve the problem.When making a long distance call from his landline, Martin pays $1.00 for the first three minutes. After that, each additional minute or portion of a minute costs $0.25. How many minutes can Martin call long distance if the cost is to be no more than $6.00?
A. up to 20 minutes
B. up to 23 minutes
C. up to 24 minutes
D. at least 6 minutes
Answer: B
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Subtract. Simplify, if possible.-8
- 
A. 7
B. -6
C. 10
D. -6
A board 17 ft long leans against a vertical wall. If the lower end is being moved away from the wall at a rate of 0.1 ft/sec, how fast is the upper end coming down when the lower end is 8 ft from the wall?
What will be an ideal response?
Solve.Here are a student's grades at the end of semester together with the number of credits for the course: Algebra (3) - C; Modern dance (2) - B; Chemistry I (5) - A; Biology I (5) - A. If A = 4, B = 3, C = 2, D = 1, and F = 0, find her grade point average. Round to the nearest tenth if necessary.
A. 4.0 B. 2.3 C. 10.0 D. 3.5
Solve the equation.-0.04x + 0.11(x + 22,000) = 2560
A. {20,000} B. {2000} C. {200} D. {200,000}