I am pretty sure that it is table one because each number from the original recipe to the teachers recipe is multiplied by three.
Tan(12)=-0.6358599287. That means -0.6358599287 = 10/x so you can swap the x to the other side to make x = 10/-0.6358599287 Which equals -15.7 rounded to the nearest tenth.
Use the app that you can easily find answers on
I think the answer is c -6.5<6.55
