Answer:
÷
(check your other question for my explanation)
If you want to solve it the answer is 13...
If you want multiple ways to write that here are some:
3x4+2-1
3x4+1
12+2-1
12+1
Etcetera
Answer:
23°
Step-by-step explanation:
The smallest angle will be X, since it is unknown. The second is three times the first (3X) and the third is X + 65, sum the three angles and equal it to180. Solve for X and substitute in the equation