Calculate the margin of error in a sample of 100 people with a standard deviation of 12.5. Please and thank you :)

Sandy is ordering bread rolls for her party,she wants 3/5 of the rolls to be whole wheat. what other factions can represent part of the rolls that will be whole wheat? shade the models to show your work.

Match each inequality to the number line that represents its solution

Hurry which expression is equivalent to 3√x^5y?