3. Suppose that you draw two cards from a standard 52 card deck. You replace the first card and shuffle thoroughly before you draw the second. [p-4-9-45] a. What is the probability that the first card is 7? b. What is the probability that both cards are 7? c. What is the probability that the first card is not a 7? d. What is the probability that both cards are not 7?

Sample response: if the graph passes the horizontaline test, then the function is one to one. functions that are one to one have inverses that a therefore, the inverse is a hinction compare your response to the sample response above. what did you include in your explanation? a reference to the horizontal-line test d a statement that the function is one-to-one the conclusion that the inverse is a function done

Ateacher wanted to buy a chair, a bookshelf, two tables and a desk. she spent $900 for all five items and the chair and the desk combined 70% of her total. if the bookshelf cost $50, how much did each of the tables cost?

If f(x) = 3x-2 and g(x) =2x+1 find (f-g)(x)