She uses Kim has 54 cups of flour.
6 cup of flour for a
recipe. How many cups of flour
does Kim have remaining?

Kim has 48 cups of flour remaining

Step-by-step explanation:

54 - 6 = 48

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