I need a lot of help.

Question

A certain planet travels around its star in a nearly circular orbit with a radius of

119119

million miles. If it takes

1.471.47

years for the planet to complete one​ orbit, estimate the orbital speed of the planet in miles per hour.

Answer 1

(119119*2π miles/1471.47 yr) * (1 yr/365 days) * (1 day/24 hr) .... you do the arithmetic!