Let s represent the length of the second side. Then the length of the first side is 3s and the length of the third side is s+13. The perimeter is the sum of side lengths:
Let’s make an equation Let’s say x = amount of years after Smith = 8, mother = 42 3(8 + x) = 42 + x 24 + 3x = 42 + x 2x = 18, x = 9 Solution: after 9 years
Clue: (I'm not giving the answer this is just clues) The word "absolute" helps you understand not to estimate so you want to get the RIGHT answer not the estimation.
