How many different 1-topping pizzas can be formed by choosing a size and topping if your choices for size are small, medium, large, and extra-large while your choices for toppings are pepperoni, sausage, onions, ham, green peppers, mushrooms and bacon?
a. 28
b. 18
c. 24
d. 11

The head librarian at the library of congress has asked her assistant for an interval estimate of the mean number of books checked out each day. the assistant provides the following interval estimate: from 740 to 920 books per day. what is an efficient, unbiased point estimate of the number of books checked out each day at the library of congress?

Which of the following is true for the relation f(x)=2x^2+1

2y= 3 2 x−2 y = − 1 3 x + 1 y=− 3 1 x+1