Maxine spent 15 hours doing homework last week. this week she spent 18 hours doing homework. she says she spent 120% more time doing homework this week. is she correct? show your work to justify your decision.

Yes, she is correct

Step-by-step explanation:

Week 1 = 15 hours

Week 2 = 18 hours

18/15 =6/5 = 1.2 = 120%

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