solve for r whats the answer
(9r-18)/2 < 459r-18< 909r< 108r < 12
R=12 because in order to get rid of the 2 in the denominator you have to multiply both sides by 2. Then the equation reads 9r-18<90. Next add the 18 to her 9r<108. And lastly divide by 9 to solve for r. Which in this case is 12
