Answer:
<h2>See below</h2>
Step-by-step explanation:
For every odd place, the first one, the third one, and so on, the rule to increase each number by 2 then 3 then 5. This is because every even numbered digit, shows how much to increase the other digits by, minus one at the beginning, no change in the middle, and plus one at the end.
I'm always happy to help :)
Add them together
e.g - 5a +6+6a+7
= 11a+13
Answer: 20, I believe
Step-by-step explanation: You already have 500 which is half of 1000. 500 divided by 25 equals 20.