Jaz908

Would you mind explaining 'b' in a little bit more detail? as in how you got that answer?

nvm, guys :D I figures it out XD

5a6b

ohhh, that makes a lot more sense :) Thanks guys :D

Do you mean formulas for four sided shapes/prisms?

So the answer is 75+3^t =1000 accounts

Therefore 3^t=925 years. Correct?

How I understand it is: 3km-8km=-5km. So if you want to see this visually draw a number line from -5 to +3. Start at +3 and subtract (walk backwards) 8 spaces. This will lead you to -5. :) Don't forget to include 0 in the middle of your number line!

Hope this helps! :)

If you still don't understand it ask me for more advise, I'd be happy to help!

Clearly I'm not a very mathematical person XD

But would you mind explaining what in 925/in 3 means. what does the 'in' bit actually mean?

sorry I didn't explain myself properly; When I said the 't' is squared I meant that the 't' is actually raised instead of an actual number. a=75+3^t   

^{Sorry, I just literally found out how to make the 't' raised, sorry.}

I've worked out A) and B) btw. tell me if you need them to work C) out :)