A photograph is 12 centimeters by 15 centimeters. A frame shop charges $1.00 per centimeter for a silver frame. How much would it cost to buy a silver frame for the photograph?

Acollege is planning to construct a rectangular parking lot on land bordered on one side by a highway. the plan is to use 680 feet of fencing to fence off the other three sides. what dimensions should the lot have if the enclosed area is to be a maximum?

Jack lives on a farm and has a large backyard. the area of his rectangular backyard is of a square mile. if the width of the yard is of a mile, what fraction of a mile is the length of the rectangular backyard?

Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup