help me it has to do with circles if you dont know how to do things with circles dont answer this question.

Adriveway is 40 yards long about how many meters long is it

Offering 30 if a plus b plus c equals 68 and ab plus bc plus ca equals 1121, where a, b, and c are all prime numbers, find the value of abc. the answer is 1978 but i need an explanation on how to get that.

Which graph has figures that can undergo a similarity transformation to justify that they are similar? (obviously not the third one)