Answer:
x=19
Step-by-step explanation:
The answer is the last one; to express very large or small numbers.
We use it so we can show big or very small numbers in an easier way.
Here we have a system of equation like this:

from the first equation we get:

Substitute in the second equation we get:

Substitute i the first equation again we get:

We deduce that:

A is bigger than B.
Answer:
0.06
Step-by-step explanation:
Answer:
72
Step-by-step explanation:
you multiply the base by the height