Find the missing angle. question 4 options: 20 90 80 70

If g^-1(x) is the inverse of g (x) which statement must be true

87.5% , 100% , 83.33 , 93.33% , 100% , 82.5% are all the academic points i've gotten this quarter. what's my final grade?

Arock was dropped from the top of a building. the function that describes the height after it was dropped is f(x)=64-16x^2. what are the zeros of the function and what do they mean?