Solve -23.7 + d = -48.57.

-4.62
-46.2
-24.87
-72.27

What percent of the circle below is shaded?

This is my question~~ ( r ^ 4 - 2r ^ 3 - 23 r ^ 2 - 4r - 32)÷(r+4) ~~ i must use long division to solve it : / i was wondering if anyone world like to solve it. and if so, share step-by-step explanations! you! ❤

Plz hurry evaluate the expression a+b where a=8 and b=19