The last three are rational numbers because whole numbers can’t be rational
Answer:
The result of the integration is 
Step-by-step explanation:
Integration of a power of x:
The integration of a power of x is:

In this question:
. So

The result of the integration is 
Ronald originally had 160 dollars.
123.45 + 36.55 = 160. That means that he had 160 dollars.
Answer:
There it is written Example 5 (hint)
Step-by-step explanation:
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We can divide each digit by 7. So 56/7=8 and 21/7=3
so.... 8:3