I want help ,i want an answer

step-by-step explanation:

left be aligning the decimal points is required to not required see the number of digits to the right

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

i'm pretty sure the answer is a. decreases with increase in