A merchant adds $3.00 to his cost to determine his selling price. Use whole numbers

Lydia collected two sets of data one set of data shows an outlier. which set has an outlier, and which number is the outlier?

Need showing work for this problem 56.25 ×25.80

Oliver had $50 on the day before his birthday. after he recived some money for his birthday , he had $75. write and solve eqaution to find how much money oliver received for his birthday. x+50=75