What properties do lines and angles demonstrate in geometry?

You are at a restaurant and owe $56.20 for your meal. you want to leave an 18% tip. approximately how much is your tip?

Which of these numbers of simulations of an event would be most likely to produce results that are closest to those predicted by probability theory? 15, 20, 5, 10

The following hormone had their receptors in the cell membrane except a-insulin b-tsh c-gh d- cortisol