Chantel drew a picture of her dog on a piece of paper that is 12 centimeters long. she used a copy machine to enlarge her drawing. she used the 115% setting to make each new copy. she then used each new copy to generate the next copy, using the same copier setting. enter a recursive formula that will give the length of each new copy. answer is 1.15an-1. i just don't understand how to get that.