Alex is ordering salads and drinks for his friends. salads cost $8 each, drinks cost $4 each, and there is a $6 delivery charge per order. he has $70. if he buys 4 salads, what is the maximum number of drinks he can buy? solve the inequality 8x + 4y + 6 70, where x = number of salads and y = number of drinks, to answer the question.

What is the binomial expansion of (2x-3)^5

Fanny mendelssohn manages all the magazines and paperback books at a local grocery store. she prices many paperbacks to sell at $7.99. the cost to the store is $5.29. what is the markup rate on a paperback book, based on its cost?

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?