Which equation represents a nonproportional relationship?
a. y=3x+0
b. y=-3x
c. y=3x+5
d. y=1/3x
chose only

Kapil needed to buy a long wooden beam. he went to two sawmills that each charge an initial fee plus an additional fee for each meter of wood. the following equation gives the price (in dollars) of a wooden beam from the first sawmill as a function of its length (in meters). p = 5+20xp=5+20x

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

Ingredient c: 1/4 cup for 2/3 serving or ingredient d: 1/3 cup for 3/4 serving which unit rate is smaller