You buy 22 pairs of shoes in a sale. you pay the full price of $48$48 for the first pair, and you get the second pair for half this price. what fraction of the full price do you pay for 22 pairs of shoes?

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?

Can someone pls ! pls answer all. no explanation needed..

The volume of gas a balloon can hold varies directly as the cube of its radius. imagine a balloon with a radius of 3 inches can hold 81 cubic inches of gas. how many cubic inches of gas must be released to reduce the radius down to 2 inches?