-41040 (typing this for filler wordddssss hope this helped)
This shape consists of two primary special triangles, 30-60-90 and 45-45-90.
the side with the 60° will be half of the hypotenuse because 30° is across from it.
the side with the 30° will be 5.5√3 because 60° is across from it, and any sides that has 60° across from it is associated with a √3.
x is 5.5√6 because any sides that is "below" the 45° angles are associated with a √2 times the side that's above the 45°
(the new amount-the original amount)÷the original amount=the percent of change
(x-25)/25=300%=3
x-25=75
x=100
Y=x(5+3x)=5x+3x², we see x² so it is a quadratic function