<em>Answer</em>
Part 1: Three and four tenths.
Part 2: 3.0 + 0.4
<em>Explanation. </em>
When writing numbers in words we must use the concept of place values. In this case for instance, the place value of 3 is ones and the place value of 4 is tenths hence called the "<em>four tenths</em>".
3.4 can be written as the sum of 3 and 0.4. So 3.4 in its expanded form is (3+0.4).
Answer:
The difference between a simple event and a compound event is that.
Event with a single outcome is named as simple event and an event with having two or more than two outcomes is known as compound event.
Answer:

Step-by-step explanation:
, You have to make it so they have a common denominator

This would make the answer

Answer:
I don't quite know
Step-by-step explanation:
but thanks for asking
I believe the answer is 2.821663239915502