Solve the problem.Using the digits 0 through 9, how many 7-digit serial numbers can be made if the the first digit must be a 1, the last digit must be a 0, and no digits may be repeated?

A. 6720
B. 8
C. 56
D. 30,240


Answer: A

Mathematics

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Evaluate the improper integral or state that it is divergent.

A.
B.
C. Divergent
D.

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Find the indicated fractional part. of 20

A.
B.
C.
D.

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Solve the problem.Find the perimeter of the polygon with the following vertices. Round to the nearest hundredth. A(1, 1), B(2, 5), C(5, 4), D(4, 2), E(3, 2)

A. 10.52 B. 12.76 C. 11.52 D. 14.64

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This frequency table gives the distribution of ages of 100 people in a small town.How many people are:Less than 30 years of age

A. 22 B. 29 C. 36 D. 18

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