Abuilding casts a 16-foot shadow. a 6-foot man standing next to the building casts a 2.5-foot shadow. what is the height, in feet, of the buildings

Four equations are shown below.equation 1: y=2*equation 2: y=2x-5equation 3: y=x2 + 6equation 4: tdentify one linear equation and one nonlinear equation from the list.why each equation you identified is linear or nonlinear.nd one nonlinear equation from the list. state a reasonlinear equation