4. suppose a b, c, d and b-sa, b). find: (a) (ax b)n(b x b) (b) (a× b) u (b× b) (c) (ax b) (d) (e) (f) (g) 9(a)-p(b) (ab)a (a× b) n b p(a)n p(b)

step-by-step explanation:

let x be the money she spent so that she can earn the free t-shirt.

since, she already spent $112.49

⇒

also, as per the statement: jennifer must spend $250 or more in order to qualify for a free t-shirt at the store.

then,

we have an inequality i.,e

subtract 112.49 from both sides we get;

therefore, $137. 51 more money does jennifer need to spend so that she can earn the free t-shirt

step-by-step explanation: