Select all of the equations that represent a nonlinear function. y = 3x2 + 9x + 6
y = 3x - 10
y = 2x + 9 + x
O y = x (3x + 10)
y = Ž +10

1200 inches = 30 yards12 inches= 1 foot3 feet= 1 yard3feet= 36 inchesyou can set up a proportion then use inverse operations that looks sorry it looks so sloppy lol

Its d so thats how it would would back from 1.0 form three four two

If i think this is what your asking, he should look at the grams or pounds/ounces and compare the to their cost then max can identify which one is proportional and which is not ( i think xd)