Marshall's mother buys 2 boxes of granola bars each week. each box contains 8 granola bars. if she continues buying 2 boxes each week, how many granola bars will she buy in a year (1 year = 52 weeks)?

a c

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