Step-by-step explanation: (I'm not gonna' do it <em>all</em> for you tho)
to convert from <u>percent to fraction</u>:
70% = 
to convert from <u>fraction to percent</u>:
= 55%
to convert from <u>fraction to decimal</u>:

to convert from <u>decimal to fraction</u>:

to convert from <u>percent to decimal</u>:
0.2% = 
to convert from <u>decimal to percent</u>:
% = 40%
With that, you can solve the rest on your own
You need k by itself, so the only way to do that is to divide both sides by 5
You need to do 10 divided by 4. Each friend would get 2.5 pounds of a nut.
Answer:
because x is the middle integer of three consecutive integers
=> The remaining 2 numbers respectively are x - 1 and x + 1
=> the sum of these three integers is
x - 1 + x + x + 1 = 3x
The answer looks like it's A.