Apainting is 16 inches wide. it is placed inside a frame with a border that is x inches wide. the total width of the painting and the frame is 20 inches. create an equation to model the situation, then solve the equation to find the width of the border.

Jessa bought a yoyo from a company that claims that, with each retraction, the string rolls up by 60% of the original length. she sets up a tape measure and throws the yoyo 3 times. her data are charted below. throw length of string (feet) 1 3 2 1.8 3 1.08 jessa wants to find the sum of the length of string after 10 throws. what is the sum of the lengths, rounded to the nearest hundredth?