You join a book club in which the membership dues cost $15. books are all the same price, which includes tax. if you buy four books when you start your membership and are charged $66.80, what is the price of each book?

What is the solution of the systems of equations? y=2/3x+3 x=-2

In the following diagram it is given that dec, ab || dc, ad || eb, and ad is congruent to bc. a)why isn't abc a parallelogram even though it has a pair of parallel sides and a pair of congruent sides b)explain why be must be congruent to bc. further explain what type of triangle this makes triangle abc and what it tells you about angle 1 and angle 2c) finally why must angle 3 be congruent to angle 1? further, explain why we know that angle 3 is congruent to angle 2

What is the value of f(x) = 2.2 for f(-2)?