7. At the end of one day, the value of a share of a certain stock was $12. Over the
three days, the change in the value of the
share was -$1, then, - $1, and then $3.
next
a. Write an expression that describes the
situation.

What is (28 + 7 + 6 + 3) x 1/2 show your work

What is the slope of the line shown below?

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