11. Mr. Worsham just finished building a house for one of his customers. He went over the plans for the last time.
40 ft.
70 It
35 ft
90 ft.
What is the area of this house?
A. 6,300 ft.
B. 4,550 ft.?
C. 180 ft.?
D. 2,800 ft.?

Anyone know? will mark brainliest if you're correct!

Through: (-3,-3) parallel to y= 7/3x+3

Quick! a survey of 57 customers was taken at a bookstore regarding the types of books purchased. the survey found that 33 customers purchased mysteries, 25 purchased science fiction, 18 purchased romance novels, 12 purchased mysteries and science fiction, 9 purchased mysteries and romance novels, 6 purchased science fiction and romance novels, and 2 purchased all three types of books. a) how many of the customers surveyed purchased only mysteries? b) how many purchased mysteries and science fiction, but not romance novels? c) how many purchased mysteries or science fiction? d) how many purchased mysteries or science fiction, but not romance novels? e) how many purchased exactly two types of books?