Hi, can anybody help with this math question?

∠aed is formed inside a circle by two intersecting chords. if minor arc bd = 70 and minor arc ac = 180, what is the measure of ∠ aed? a) 45° b) 50° c) 55° d) 60°

Given the function f(x) = log base 4(x+8) , find the value of f^-1(2)

Sole the equation 6n + 9 = -3n - 21 - 6 for n