4 years ago

A company wants to have 8 digit phone extensions with first digit not being zero

Mathematics

1 answer:

Nadusha1986 [10]4 years ago

4 0

9*10^7=90000000

There are ninety million possible combinations. :)

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3 years ago

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4 years ago

Saylor Henshaw earned $120 in simple interest in 9 months at an annual interest rate of 5%. How much money did he invest?

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3 years ago

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$\frac{18}{72}$

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$\frac{3}{12}$

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8 0

4 years ago