Decide if the Fraction is Equivalent and tell what number was used to reduce them. If they are not, explain why. 36/160= 3/5

Lindsay is creating a bridge out of dried pasta and glue. in her plans, she sketches the graph to determine the lengths of the noodles, in centimeters, needed for the arch to increase the length of the bridge in 1 centimeter increments.which function did lindsay use to create her design? f(x) = (x – 5)2 + 8 f(x) = –(x + 5)2 + 8 f(x) = 0.5(x + 5)2 + 8 f(x) = –0.5(x – 5)2 + 8

Simplify (a/b - b/a) times (a - a^2/a+b) a - a^2/a=b is a mixed number

Can someone me out here and the tell me the greatest common factor