What is the length of YZ in XYZ

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

Find the midpoint m of z1=(8+5i) and z2=(12+3i)

Need ! the total ticket sales for a high school basketball game were $2,260. the ticket price for students were $2.25 less than the adult ticket price. the number of adult tickets sold was 230, and the number of student tickets sold was 180. what was the price of an adult ticket?