Hellp! me thanks alot explain if u can

15 sides

Step-by-step explanation:

360/24 =15

Hope this helps!

number of sides = 15

Step-by-step explanation:

since we are given the size of exterior angle and we know that the number of sides (n) = 360 ÷ by the size of the exterior angle.

so it's 360÷24 which is 15

I hope it's helpful!

B

Step-by-step explanation:

Because it'll be 1²+2×1-3=0

And -3²+2(-3)-3=9-6-3=0

So it's impossible