Alaboratory culture contains 150 bacteria. after twenty minutes, the culture contains 300 bacteria. after one hour, the culture contains 1200 bacteria. make a conjecture about the rate at which the bacteria increases

17 1/3

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