Anna makes $100 a week. she spends $70 a week and saves the rest. she is saving to buy a $240 sound system. how long will it take her to save the money?

a. 3 weeks

b. 4 weeks

c. 6 weeks

d. 8 weeks

The answer to the question is D 8 weeks.

idk

step-by-step explanation:

use that smart brain

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