Please help me with my Math questions! Posted the same question like 4 or 5 times. No one has answered yet on any of them

Who came up with a Flute?

In contour drawings crossing lines is one way to indicate this

How is a suspension construction made? where is it most commonly used?

What motivates lillian jean to tell cassie all her secrets? her feeling of superiority over cassieher feeling that cassie cannot be trustedher need to trick cassie into liking herher need to make cassie feel jealous