Three less than the product of

7

and a number equals

9

.

Use the variable

y

for the unknown number

Most famous impossible problem from greek antiquity?

An electrician charges his customers an hourly rate plus a service fee of $30. The table shows the amount of money the electrician earned from his last four customers. What equation represents a customers charge, C, for x hours of service

What is the value of n in this 53*118=53*100+n*18

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