6. A bookstore recorded a decrease in the sales of paperback books over the past year. From last year to this year the store experienced a 10% decrease in sales. This year the store sold 7740 books. How many did it sell last year?

What is the equation of a line passing through the point (6,1) and parallel to the line whose equation 3x=2y+4

Will mark determine whether the conjecture is true or false. give a counterexample for any false conjecture. given: points r, s, and t conjecture: r, s, and t are coplanar. a) false; the points do not have to be in a straight line. b) true c) false; the points to not have to form right angles. d) false; one point may not be between the other two.

Gables properties corp. is leasing office building with an area of 49b^2+70b+25. what is the shape of the building? a) rectangle b) square