Find the measure of 5

During a bike challenge riders have to collect various colored ribbons each 1/2 mile they collect a red ribbon each eighth mile they collect a green ribbon and each quarter mile they collect a blue ribbion wich colors of ribion will be collected at the 3/4 markrer

Find the roots of the polynomial function f(x) = x^3 + 2x^2 + x

What is the solution to the system of equation graphed belowa.(0,-4)b.(2,5),1),-3)