Iwanted to know if these were right, if not could someone me figure out which ones are right? : )

Brainlest answer can you find the area and circumference of a circle given the radius or diameter? if its yes or no explain why

Solve 2^x=32 and rewrite this equation in a logarithmic form

Hell . what are the solutions to `10x^2 - 38x - 8 = 0`? is this when i find the factors and use the numbers within the factors to determine the zeros? i hope that made sense lol