Will give brainliest for correct answer

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

Afamily has five members. a mom, a dad, two sisters, & a brother. the family lines up single file. what is the probabillity that the mom is at the front of the line

What would be the reasons for lines 3 and 4? a. addition property; subtraction property b. addition property; solve c. substitution property; subtraction property d. substitution property; prove