I need to find the answer to 3x = 15.

it's super duper easy

Step-by-step explanation:

3x = 15.

x=15/3

x=5

3x = 15

x = 15÷3

x = 5

proof = 3×5=15

Step-by-step explanation:

Hope this helps you!!

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