The measure of an angle is 4y°. Find the measure of its supplement. And my options are

a
(180 - 4y)°

b
(90 - 4y)°

c
(90 + 4y)°

d
(180 + 4y)°
Help, pls and ty :)

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