Abook on the clearance rack was marked down 65% from $21.95. approximately, how much was the book discounted?

Part a : solve -vp + 40 < 65 for v part b : solve 7w - 3r = 15 for r show your work .

Ahigh school has 3636 players on the football team. the summary of the players' weights is given in the box plot. approximately, what is the percentage of players weighing less than or equal to 225225 pounds?

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?