If a baseball is dropped from a skyscraper what will its speed be after 6.5 seconds

Marco states that 7.696696669…… is a rational number because it is a repeating decimal. is he correct? justify your answer.

Radials are weird[tex](14 \sqrt{6}) ^{2} [/tex]whats the answer and how do i solve pls

The 7th grade has collected $200 for a field trip that would cost $600. the teachers decided to ask $50 from additional students to cover the cost. how mny students must pay to cover the cost ? a 16studentsb 80studentsc 160studentsd 8students show work