Which of the following equations is the result of cross multiplying the given proportion?

4/k+3=-2/k-5

-2(k-5)=4(k+9)
(-2)(4)=(k-5)(k+9)
-2(k+9)=4(k-5)

Mrs. chibas is making chocolate chip cookies for her daughter's class. she bought a tub of chocolate chip cookie dough that contained 57.6 ounces of dough. if each cookie needs 1.2 ounces of dough, how many cookies can she make