A.) simplify 4a + 7b - 3a + 11b
b.) expand (i) 4(x-3) (ii) f(2f+5)
c.) simplify 5(2x + 1) - 2 ( 3x - 1)

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

Aremote-controlled boat can travel at 4 feet per second in calm water. the boat traveled 48 feet with the current, and then it traveled 16 feet against the current in the same amount of time. how fast is the current?

Which of the following expressions cannot be simplified to x – 2?