What are two similar triangles and how do know there similar! please help

In dire need~! describe how to use area models to find the quotient 2/3 divided by 1/5. check your work by also finding the quotient 2/3 divided by 1/5 using numerical operations only.

What fraction is equivalent to 0.46464646··· a. 46⁄999 b. 46⁄100 c. 46⁄99 d. 23⁄50

Astraight water slide is 175 feet above ground and is 200 feet long. what is the angle of depression to the bottom of the slide?