Three friends, Dane, Lane, and Shane, all live in different towns but all three live on a street called Main. Their three house address numbers add up to 855. Lane and Shane’s house address numbers have a sum equal to two-thirds that of Dane’s house address number. What is Dane’s house address number?

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

54 it just is

step-by-step explanation: