1.
(a) amount of potting soil he purchased last week
(b) 28 = 2p + 4
(c) 28 = 2p + 4
28 - 4 = 2p
24 = 2p
24/2 = p
12 = p
(d) last week, he bought 12 lbs of potting soil
2. F = ma
(a) F/m = a
(b) -25/10 = a
-2.5 = a
(c) F = ma
25 = 5m
25/5 = m
5 = m
3.
(a) cost of the t-shirt
(b) 12 + x = 23
(c) 12 + x = 23
x = 23 - 12
x = 11
(d) the t-shirt (x) cost $ 11
