Question

help ?

Answer 1

Sure

Answer 2

So I think this is like a ratio problem.

Answer 3

PR is 21. PA is 7. So you know AR is 21-7 = 14.

Answer 4

If AR is 14 and ET is 5, because the line is the same slope, then you can assume that the ratio between PA and LE will be the same. So we have: 14/5 = 7/x, where x = LE. Solving for x, we get x = 2.5 = LE.

Answer 5

Now, LE + ET = LT, which is 2.5 + 5 = 7.5.