I think the answer is 4/25 simplified to the lowest amount
I'm guessing these problems are meaning multiplication in which you need to multiply them but don't worry here is your answer.
6 * 36,200 = (217,200)
21 * 8,050 = (169,050)
Subtract your totals which gives you (48,150) is your answer!
Hope this helps.
Have a great day!!!
The question is an illustration of solving equations using estimates.
The student's strategy makes sense because he uses estimation to solve the given equation
The correct sequence of equation is as follows:
We have:

Add 0 to the equation

Express 0 as 1 - 1


Add another 0

Express 0 as 3 - 3


Rewrite as:

Solve


Read more about estimation and equations at:
brainly.com/question/18454732
Step-by-step explanation:
The option is C
= 1/ 2^20 • z^15
Hope it will help :)