How to draw 30/4 in to an mix number

What percent of 18 is 24? and plz explain thx.

What is the distance between a and b? round your answer to the nearest tenth. a coordinate plane is shown. point a is located at negative 1, 5, and point b is located at 4, 1. a line segment connects the two points.

Afamily went out to dinner and their bill was $113.if they want to leave a 19% tip, how much should they leave.