If a and b are two integers, then 3(a-b)^2 means​

What is the approximate circumference of the circle shown below?

If (x-2) 2= 49, then x could be a. -9 b. -7 c.- 2 d. 5 e.9

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