The following numerical ordered sequence of numbers have a mean of 17 and median of 18 . 7,a,12,15,17,b,20,22,24,25 what are the values of a and b

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