What is the sum of the geometric series in which a1 = −5, r = 3, and an = −405? hint: r ≠ 1, where a1 is the first term and r is the common ratio. hint: image attached options: a) sn = −1,220 b) sn = 605 c) sn = −15 d) sn = −605

don't know what that says sorry i can't you

step-by-step explanation:

idk what it says

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