HI MODERATORS I sent an email a month ago and no one deleted my acount

Show your workcan a right triangle have this sides? *how to prove it without using the pythagorean theorema*

Weekly wages at a certain factory are normally distributed with a mean of $400 and a standard deviation of $50. find the probability that a worker selected at random makes between $450 and $500

Nicole is making carrot bread she needs 5 cups of carrots for 2 cups of sugar.what is the ratio of cups of sugar to cups of carrots that nicole will need? write the ration in three different ways