How write 119,000,003 in two other forms

Which of the following would be a good name for the function that takes the weight of a box and returns the energy needed to lift it?

Ineed i been stuck on this question since yesterday

Suppose you are an avid reader and are looking to save money on the cost of books instead of paying about $20 for each book, you decide to look into purchasing a kindle for $120 you can purchase e-books for about $5 each 1. find the slope-intercept equation for the cost of the hard copy of books using x to represent the number of books 2. find the slope-intercept equation for the cost of the kindle with cost of e-books using x to represent the number of books