Answer:
the 3rd one
Step-by-step explanation:
i just know
IF UR USERNAME IS A JOKE F U. if its not then i support you
well, we know that θ is in the III Quadrant, where the sine is negative and the cosine is negative as well, or if you wish, where "x" as well as "y" are both negative, now, the hypotenuse or radius of the circle is just a distance amount, so is never negative, so in the equation of cos(θ) = - (2/5), the negative must be the adjacent side, thus


She has to buy $100.00 worth of groceries before her savings equals the membership fee.