I need help with my geometry homework.

1.  substitute in for parabola, substituting for the same equation does nothing

2. the factors for y^2+y-20 are (y+5)(y-4)

3. solutions are y=4 or -5

4. substituting y=-5 in the equation

-5 = x^2 -5

0=x^2

x=0

therefore the three points of intersection are (0,-5), (-3,4), (3,4)

b) 1/3 * 1/5

step-by-step explanation:

each smallest part is 1/15 since the written one is 1/5 and it's divided by 3 equal parts. (1/5 )/3 = 1/15 = 1/3 * 1/5