Okay i don't know how to do this at all and need some major it's 6th grade math !

Given that ot =5, xt=12, and ox= 13 is xy tangent to circle o at t? explain.

If chord ab is congruent to chord cd, then what must be true about ef and eg?

Oliver read for 450 minutes this month his goal was to read for 10% more minutes next month if all of her medicine go how many minutes will you read all during the next two months