Evaluate the expression.

International calls require the use of a country code. many country codes a 3-digit numbers. country codes do not begin with a 0 or 1. there are no restrictions on the second and third digits. how many different 3-digit country codes are possible?

If the wwight of a package is multiplied by 7/10 the result is 65.8 find the weight of the package

You have 138.72 in your saving account u take out 45.23 and 18.00 you deposit 75.85 into your account