Solve the problem.A football player lost 3 yards on each of a number of plays. His total yardage lost was 15 yards. How many plays were involved?

A. 4
B. 6
C. 5
D. 7


Answer: C

Mathematics

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Convert the angle in radians to degrees.

A. 3° B. 60° C. 60?° D. 1°

Mathematics

A college student earns $45 per day delivering advertising brochures door-to-door, plus 75 cents for each person he interviews. How many people did he interview on a day when he earned $129? ?

A. 112 B. 111 C. 113 D. 117 E. 114

Mathematics

Use Cramer's rule to find the solution of the system, if possible. ? ?

A.
B.
C.
D. The system is inconsistent.
E. The equations are dependent.

Mathematics

Let E and F be events such that Pr(F) = 0.4 and Pr(E ? F) = 0.3. Compute Pr(E' ? F).

A. 0.05 B. 0.55 C. 0.006 D. 0.10 E. none of these

Mathematics