Acake recipe requires 3 1/4 cups of flour for 13 servings and 4 1/2 cups of flour for 18 servings. how much flour is required to make a cake that serves 28?

the answer is c)8

step-by-step explanaction:

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