Samuel's exit ticket is correct, because he multiplied both sides of the equation by seven, using the Multiplication Property of
Equality to justify how he got from the first step to the second step. Selma's exit ticket is correct, because she subtracted three from both sides of the equation, using the Subtraction Property of Equality to justify how she got from the first step to the second step. Samuel's exit ticket is correct, but Selma's is incorrect, because she solved the problem in the wrong order. Selma's exit ticket is correct, but Samuel's is incorrect, because he solved the problem in the wrong order. Both students used the properties correctly to justify their correct solutions to the equation. Neither Samuel's or Selma's exit tickets are correct. Neither student used the properties correctly, even though their solutions are true.
73+107 = 180. When the smaller of the two angles is 73 all of the smaller angles are also going to be 73 and since the angles MTS and STN are bigger angles they both have to be 107
