Answer:
24 kg needs to be taken out
Step-by-step explanation:
28-4
5 apples on Monday
Add 7 more apple from Tuesday
You get 12 apples in total!
x = 
subtract 4x from both sides of the equation
6x - 4x - 2 = 13
2x - 2 = 13
add 2 to both sides
2x = 13 + 2 = 15
divide both sides by 2
x = 
Let the Integer be x then its consecutive number will be x+1,
So, x+x+1=139,
2*x=138
x=69
The integers are 69,70
The first term is 8, so 
Each time we want a new term, we add on 3
8+3 = 11
11+3 = 14
14+3 = 17
17+3 = 20
23+3 = 26
and so on
This recursive step of adding on 3 to the prior term is written as this:
which says "to get the nth term, add 3 to the term just before the nth term"
Based on what you posted for your answer choices, the final answer is likely choice C. However it seems some weird typo happened.