Mary’s parents gave her $60 as pocket money to meet her daily expenses. she spent $20 on clothes and $10 on food. she wishes to buy some books, also. if each book costs $3 each, solve the inequality to find how many books she can buy. question 5 options: at the most 10 at least 10 10 at the most 5

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?