Cole found BC in ABC, His work is shown below. Identify the first step in which his work shows an error. What is the answer?

Find the simple interest earned to the nearest cent for each principal,interest rate,and time 735 7% and two and a half years

Prove that 3: 8 is equivalent to 12: 32.a. use diagrams to support your answer.

Aperpendicular bisector, cd is drawn through point con ab if the coordinates of point a are (-3, 2) and the coordinates of point b are (7,6), the x-intercept of cd is point lies on cd.