Answer:
He needs 31.25 bales of hay to feed 15 horses for two weeks
Step-by-step explanation:
This question can be solved using a rule of three.
25 bales of hay feed 12 horses. How many feed 15 horses?
12 horses - 25 bales of hay
15 horses - x bales of hay



He needs 31.25 bales of hay to feed 15 horses for two weeks
Subtract (1/3)x from both sides of the equation.
(1/3)(x) - (1/3)(x) + y = -(1/3)(x) + 4
0 + y = -(1/3)(x) + 4
y = -(1/3)(x) + 4
Done!
Sqrt(-2), can be written as i * sqrt(2). Thus, our answer is x - i sqrt(2).
That's Edgenuity ? maybe I can help