sparx

[south fern]

I’m so confused on this question and I can’t get an answer for it can someone help me because I’ve tried using c squared minus b squared but that gives me some long number which I know isn’t correct

[balmy oracle]

6.4

Or 6 2/5

8 times 12/15

[unborn timber]

isn’t it 10

they’re similar; 12 becomes 15 and so if you find the ratio between them you get 5/4