To find the cost of the truck, you will need to add all the expenses that incurred in addition to the actual cost of the truck.
35000 + 2000 + 1200 + 120 + 220 = 38540
The cost including expenses should be recorded as $38540.
Number 1s answer would be 2. and number 2s answer would be 2
We can simply observe that.
- 0.777... is rational, because it is a number with infinite but repeating decimal part.
- 1/3 is rational, because it's the division between two integers
, so this is rational as well.
Since the product of two rational numbers is always rational, we have that

are all rationals, since they are the product of two rationals.
On the other hand, we have

and thus

which is irrational.