A traffic light located at 1st Street and 5th Avenue has a red light for 75 seconds, a green light for 120 seconds, and a yellow light for 5 seconds, if you are traveling on 5th Avenue. If a person arrives at the light at a random time, find the probability of the light NOT being red when the person arrives.

Prove that quadrilateral is a rhombus.

For the following geometric sequence, find the recursive formula. {-80, 20, -5, } i need : ')

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?