Skip work! get some booty! don't care about skool
To solve this problem you must use the information given in the problem above:
1. You have that he jogs
to the park and then
to the playground, then he jogs
miles to the bridge and
to his house.
2. Therefore, as you can see, Jerry completes his jog when he arrives to his house. So, he is
from his house.
Then, the answer is: 
97. The great wall is more than 20 000 kilometers long. And about ¾ of it is considered as properly preserved.
I guess you are asking about the value of ¾ which is properly preserved in the said length of the great wall.
=> ¾ = 0.75
Thus, the formula would be like this:
=> 20 000 * .75 = 15 000
Thus, the ¾ value of great wall that is preserved is equals to 15 000 kilometers long,
-22.55 i think i used a cal but all u do is subtract the percentage with the number
Answer:
-5^ -1 = 1/(-5) = -1/5
-1/y^(-4) = -(1/(1/y^4)) = -y^4
5^4 x 5^7 = 5^(4 + 7) = 5^11
Hope this helps!
:)