Answer:
B and D are the answer's.
Step-by-step explanation:
By using exponent, it can be verified that
in standard form is 
What are exponent?
Exponent tells us how many times a number is multiplied by itself.
For example : In 
Here, 2 is multiplied by itself 4 times.
If
(m times), a is the base and m is the index.
The laws of index are

The given exponent is

To learn more about exponent, refer to the link:
brainly.com/question/11975096
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Answer:
x>34
Step-by-step explanation:
w = x-8
w+x>60
x-8+x>60 (substitute x-8 for w)
2x-8>60
2x>68 (add 8 to both sides)
x>34 (divide both sides by 2)
please mark as brainliest :)
First you multiply 2and3/8 by 4 and which you will get 3 then you subtract 23 and 3 and get 20