Quicks You take out a 20-day single-payment loan for $750 with an interest rate of 18%. What is the
amount of the maturity value?

no this is a nonlinear negative

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