Identify and describe how organisms respond to an external stimulu

What is the value of f(x) = 2.2 for f(-2)?

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

Aline passes through the point (9,-7) and has a slope of 4/3 write an equation in point-slope form for this line. first to answer correctly gets brainleist