Mario tried to solve an equation step by step: 4/3=q+1/3 step one: 4/3-1/3=q+1/3-1/3
step two: 2/3=q
find mario's mistake
A step one
b step two
c mario did not make a mistake

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?