What is the surface area of this square pyramid?
Round your answer to the nearest tenth, if necessary.

43.8 yd²

66.6 yd²

105 yd²

171.6 yd²

The figure shows a square pyramid. The slant height is shown as a dashed line segment perpendicular to the base edge. The length of the base edge is 6.2 yard. The lateral edge makes a 60 degree angle with the base edge.

What can you determine about the solutions of this system

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?

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way