Someone please answer this and not one of those bot links answer it someone an actual person please answer it I’ll give you brainliest…

-7/8

step-by-step explanation:

instead of subtracting you add the -6/8 and -1/8

you can't solve x because it is 2 linear equation and you only have one equation

b

step-by-step explanation:

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