A system of two equations is shown. x+2y = 62x−3y = 26 What is the solution of the system?

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

Given: lines a and b are parallel and line c is a transversal. prove: 2 is supplementary to 8 what is the missing reason in the proof? statement reason 1. a || b, is a transv 1. given 2. ∠6 ≅ ∠2 2. ? 3. m∠6 = m∠2 3. def. of congruent 4. ∠6 is supp. to ∠8 4. def. of linear pair 5. ∠2 is supp. to ∠8 5. congruent supplements theorem corresponding angles theorem alternate interior angles theorem vertical angles theorem alternate exterior angles theorem

Is experimental probibilty the same as the observed frequency in math? i need the answer asap!