Read the statement, and identify the expressions that are equivalent. Select all that apply. The sum of a number times 3 and 15

15 + 3xn
3 x 15
15 - 31
15 x n + 3
(n x 3) + 15
(n + 15) x 3

h= 12 inches

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

i believe b is the answer

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