The simplest expression she can use to do this is the LCD
To find it we first need to factor all the denominators
So
(4x+24)=4(x+6)
(5)=5
(x^2 -36) = (x+6)(x-6)
So LCD is 5*4*(x+6)(x-6), which is the simplest
1 person can finish 1st, 1 person can finish 2nd, one can finish 3rd, out of one of the other three one has to be last. Mark as Brainliest please
Perimeter 90
Height 15
Answer
30
4x is your answer to your question