Okay please take another picture of it and repost it.
Answer:
1) The correct answer is option D.
2)The correct answer is option A.
3)The correct answer is option A.
4)The correct answer is option B.
Step-by-step explanation:
1) Scientific notation is defined mathematical representation used to to represent the a decimal number which present between 1 to 10 multiplied by 10 raised to power equal ti some integer. For example:

Hence, the correct option is D.
2) The scientific notation of number 0.0000000708.
0.0000000708 = 
Hence,the correct answer is option A.
3)When the power of the number ten is in negative.
- if the power is more negative number will be smaller.
- If the power is less negative the number will greater.
Greatest number from the given option is 

4) 

Hence, the correct answer is option B.
Answer:
the answer is the state trial.
Step-by-step explanation:
27.8 percent I believe is your answer
Explanation
Simplify 15,000 to 15 and 5,400 to 5.4
15 divided by 5.4 will tell u the percentage as u would with fractions
You get 2.77777777778 round if you feel like u need to
But since I simplified I have to move the decimal
So I get 27.8 percent if u round you’d have to round up because 8 is larger than5
So to get rid of the decimal you’d get 28 percent
To solve for R you would have to divide D by T