Tommy posts 11 pictures on instagram every day. elizabeth posts 15 pictures on instagram every day. part a: define each variable and write an algebraic expression to describe the combined number of posts for tommy and elizabeth after any given number of days. part b: after 7 days, how many pictures have tommy and elizabeth posted altogether? how do you know?

The distance between two cities is 368 miles. if the scale on the map is 1/4 inch=23 miles, what is the distance between the cities on the map?

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

If a company produces x units of an item at a cost of $35 apiece the function c=35x is a of the total production costs