Johnny read 1
2
of a book in the morning, and he read some more at night. By the end of the day, he still had
2
5
of the book left to read. How much of the book did Johnny read at night?

Astandard deck of cards contains 52 cards. one card is selected from the deck. (a) compute the probability of randomly selecting a seven or king. (b) compute the probability of randomly selecting a seven or king or jack. (c) compute the probability of randomly selecting a queen or spade.

What is the value of x when x + 7 = 21?

Which of the following best describes the graph below? + + 2 + 3 + 4 1 o a. it is not a function. o b. it is a one-to-one function. o c. it is a many-to-one function. o d. it is a function, but it is not one-to-one.