L. what does it mean to "convert" from one unit to another? give an example.

2. what are the general mathematical operations you use when converting from one si unit to another?

3. how many meters do you cover in a 10 km (10-k) race?

4. an olympic swimming pool is 50 meters long. you swim from one end to the other four times.
a. how many meters do you swim?
b. how many kilometers do you swim?
c. how many centimeters do you swim?

L. What does it mean to "convert" from one unit to another? Give an example.
To convert means is to obtain an equivalent value with a specific unit to another unit. An example would be 1 inch is equal to 2.54 cm.

2. What are the general mathematical operations you use when converting from one SI unit to another? 
The mathematical operations used in converting units would be multiplication and division.

3. How many meters do you cover in a 10 km (10-K) race? 

4. An Olympic swimming pool is 50 meters long. You swim from one end to the other four times. 
a. How many meters do you swim? 
50 x 4 = 200 meters
b. How many kilometers do you swim? 
200 meters = 0.20 kilometers
c. How many centimeters do you swim? 
200 meters = 20000 centimeters

Your answer is c. explanation: plasma  is the fourth state of matter, derived from the gaseous state of matter.  plasma  can contain free  electrons  and/or  ions. while  plasma is never neutral, it can either be positively or negatively charged.  gases, however, are electrically neutral.