a lunch menu has 3 sandwhiches, 4 types of chips, and 5 types of drinks How many ways can a person order a meal

Which of the following system of equation is not equal to the system of equations is not equal to the system of equations shown below

In the diagram, the measure of angle 9 is 85° which angle must also measure 85°?

How many different triangles can be constructed with the angle measurements of 134° 10° and 36° ?