65% of American adults are video gamers. What percentage of American adults are not video gamers?

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

Given: x + y = 6. if xe (-15, -6, -1), then which of the following sets of ordered pairs are solutions? © {(-15, -21), (-6, -12), (-1, -7)} [(-15, 21), (-6, , 7)} {(-15, 21), (-6, 12), (-1, -7)}

What expression is equivalent to 1/2(2+3x-6)