What does 3x^2+8x-10 equal?

Select all the correct answers. what is 221,000,000,000,000,000,000 expressed in scientific notation?

What expression is equivalent to (2x-1)(x-3)?

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