Mr and mrs smith each have a car. mr smiths car has needed 6 tyres and 2 batteries since new. mrs smiths car has needed 9 tyres and 1 battery. a. how many tyres and batteries have the smiths needed together? b. use t to stand for a tyre and b to stand for a battery. write down an expression and then simplify it, to show how to get your answer in part a.

Determine the next term in the sequence. then write the next 2 terms 4,16,28, what number do you do to get that?

1- is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis. 2- 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. 3- 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 part b?

Which of these numbers of simulations of an event would be most likely to produce results that are closest to those predicted by probability theory? 15, 20, 5, 10