thank you very much

probably...\(x=-99+\sqrt{8021},\:c=0\)

...I give up

thhhhx

5%=0.05

so each year, it multiplies by 0.05.

And since is ten years. You just have to calculate 0.05^10

The anwser is 1, 1*4-3=1^2 and 1*7-3=2^2

Also, please help with this:

I choose three different numbers out of this list and add them together: 1, 3, 5, 7, 9,..., 105. How many different totals can I get?

the anwser should not repeat, for example 105+1+3 and 103+1+5 have the same anwser.

ps: I think that anwser is 150, can anyone check?