Which of the following pair(s) of circles have /as a common external tangent? Select all that apply. PLEASE HELP

If you answer 2+2 you will get over 80 points

What is the product? a-3/15a × 5/a-3

Afair survey question is one that does not encourage biased responses. which survey question is fair? a.) do you agree that only unethical people take credit for other people’s work? b.) have you ever taken credit for somebody else’s work? c.) have you ever engaged in unethical behavior, such as taking credit for somebody else’s work? d.) don’t you think it is unethical to take credit for somebody else’s work?