Mr. and mrs. duane share a saving account. there were d dollars in the savings account when mr. duane withdrew $45 from the account. mrs. duane deposited m dollars into the account. then mr. duane deposited an addition $65 into the account.

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 simple annual interest rate on a loan is 6, what is the interest rate in percentage per month?

Jordan got 27 out of 90 correct on his test . what fraction of the marks did her get correct