I need help 10 more points left

pls

Olivia uses the work below to determine 55% of 720 which explains the error in olivia’s solution

Kapil needed to buy a long wooden beam. he went to two sawmills that each charge an initial fee plus an additional fee for each meter of wood. the following equation gives the price (in dollars) of a wooden beam from the first sawmill as a function of its length (in meters). p = 5+20xp=5+20x

Select the lengths in centimeters that would form a right triangle