Abc bookstore sells new books according to the demand function p = -q + 25, where p is the price and q is the quantity. if the bookstore charges $18 for a new book, how many new books can the store expect to sell?

P = -Q + 2518 = -Q + 2518-25 = -Q-7 = -Q-7/-1 = -Q/-1Q = 7

Therefore, the store can expect to sell 7 new books if they will charge $18 for the new books.

where's the diagrams?

so a parallelogram is just like a square base times height. multiply 40 and 39 to get 1560 inches.

a triangle is base times height divided by two. so multiply 7.9 and 5 and then divide it by 2 to get 19.75inches.

the kite can be split into two separate triangles and added together to get the total area. 30 x 4 /2 which equals 60. make sure to double it for the two triangles making 120.