Answer:
16
Step-by-step explanation:
Following the order of operations (PEMDAS), combine the terms in your parentheses:

Remember that we follow the order of operations from left to right.
Divide 8 into 2:

Multiply:

5*4*6=120
4+(6+9)=19
675+9=75
Answer:
73 degrees
Step-by-step explanation:
Answer:
No not all of them.
Step-by-step explanation:
Triangles can be 2d meaning like a flat triangle.