1. Is C 2. Is A 3. Might be D 4. Is B 5. Is D
It's hard to read could you just right the number
A^2+b^2=c^2 so c^2=12^2+16^2 which then simplifies to c^2=144+256 then simplify that to c^2=400. After that take the square root of c^2 and the square root of 400. So your answer is c=20
