The length of a rectangular box is 2 units less than its width.
if the area of the box is 15 units square.
find the perimeter of the box.

Of four points are collinear, they are also coplanar

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?

Your client has saved $1,860 for a down payment on a house. a government loan program requires a down payment equal to 3% of the loan amount. what is the largest loan amount that your client could receive with this program