How do i do algebra..i dont understand it..btw i am a 9th grader

We have enough material to build a fence around a station that has a perimeter of 180 feet the width of the rectangular space must be 3 1/4 feet what must the length be

If g^-1(x) is the inverse of g (x) which statement must be true

A.s.a.! similarity in right triangles, refer to the figure to complete this proportionc/a = a/? a.) cb.) hc.) rd.) s