Multiply, and simplify the answer. 7/3 (-6/4) a.-7/2 b.1/7 c.-14/9 d.49/12

Cam bought some used books for $4.95. he paid $0.50 each for some books and $0.35 each for the others. he bought fewer than 8 books at each price. how many books did cam buy?

1- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis.2- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in the first question?

A. what does the point (4, 122) represent? b. what is the unit rate? c. what is the cost of buying 10 tickets?