Suppose that the probabilities of a customer purchasing 0, 1, or 2 books at a book store are 0.4 , 0.2 , and 0.4 , respectively. What is the expected number of books a customer will purchase?

What is the cartestian coordinate system of x - y = 4

Y = 0.75x unit rate =

Which three-dimensional solid can have a vertical cross section that is a circle with a radius of 7? 3.5 Intro Done

What is the standard form for 4,000,000+3,000+50+2

A standard 52-card deck consists of 4 suits (hearts, diamonds, clubs, and spades). Each suit has 13 cards: 10 are pip cards (numbered 1, or ace, 2 through 10) and 3 are face cards (jack, queen, and king). You randomly draw a card then place it back.

What is the speed of a plane that travels at a rate of 520 mph against a wind of r mph?

18. * Gillway Community College, 43 out of 381 students earned honors. At Montessa Valley Community College, 17 out of 108 students earned honors.

Using the distributive property of multiplication for 12: (8+7) we get

A bag contains five green gumdrops and six red gumdrops. if kim pulls a green gumdrop out of the bag and eats it, what is the probability that the next gumdrop she pulls out will be red? (5/11) (1/2) (6/11) (3/5)

If tam walks 2 miles to school during gym and runs 3 times as fast as Dante how many miles would Dante go if he ran 1 mile