Checkers can catch and kill a single mouse in 40 seconds. Muffy can catch and kill a single mouse in 70 seconds. If Checkers and Muffy work together, how long would it take to catch and kill a nest of mice that contains 11 mice?

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?

The wheels of a bicycle have a diameter of 70cm. how many meters will the bicycle travel if each wheel makes 50 revolutions

The holiday party will cost $160 if 8 people attend.if there are 40 people who attend the party, how much will the holiday party cost