Question

WILL MEDAL!!!!! Which system of .... (question attatched)

Answer 1

you got to try all of them and see which ones work
but we can be a little smart about it
it can't be D because that 50 throws everything way off

Answer 2

also it cannot be B because \[2^2+4^2\neq 90\]

Answer 3

so try A and C and see which one works