Please answer number 26

A) The product is rational

Explanation:

The number 4.56 is rational because any terminating decimal can be written as a fraction of two integers. For example, 4.56 = 456/100

The number is the same as where the '5's go on forever. Repeating decimals like this are rational. It turns out that which you can find through trial and error, or apply a bit of algebra. I'll skip showing those steps unless you need me to go over them.

Because both given numbers are rational, multiplying those two rational numbers will lead to another rational number

rational times rational = rational

I'll skip over the proof of this as well unless you need me to show it.

First, think of what you know. you know that the number t the end of the equation will need to be subtracted because it is the money he lost from buying the lawn mower. and your first two weeks have negative profit, so that tells you that c and d are wrong. now you can plug any of the weeks into a and b to see which one works. i'll start with plugging week 1 into a.this isn't right because it says your answer for week one should be -90.so now we need to try the same thing with b.this one got you the right answer, (sometimes if you only check with one of the weeks multiple will work so you need to check with more of the weeks, but it worked out fine here)this means that b is the correct answer.let me know if you need more clarification. i hope this : )