What number is supposed to be filled in at wax warmers A.75

B.55

C.40

D.69

cant see photo

step-by-step explanation:

the height of the surface increases from the center out to the sides of the road

it is c!

this is a direct variation proportion. y = kx

y is the total amount due, k is the constant of variation, and x is the number of texts sent.

plug in the 3.20 and the 16 to solve for the "k". this is the constant of proportionality. it is the value that will not change.

3.20 = k(16). solving you get $.20 per text.

the equation would then be y = .20x