Answer:
(a)
weight of snack packs (b)
(c)

Explanation:
(a) Write an inequality:

What does your variable stand for:
weight of snack packs
(b) Solve the inequality.
Subtract 4 from both sides:


Divide both sides by


(c) The care package has to weigh less than
. Since the total weight of the care package can not be equal to
, the maximum number of snack packs that Marisol can include is
.