F(x) = 1 + 9. Find f '(x) and its domain. O A. f-1(x) = (x – 9)?;x29
OB. 8-1(x) = x2 – 9;x20
O c. f-1(x) = x2 – 9;x29
O D. f-1 () = (x – 9)?;x20

$12. that is my answer.

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