Answer:
24
Step-by-step explanation:
When 2 numbers are together that means multiplication
x=6
6x4=24

The answer is above.
Additional note 1:

Additional note 2:
In the answer I filled in "0" at the place where "n" was. This is because the question tells us n=0
Answer:
73
Step-by-step explanation:
...wait 69?!?!?!?!
Answer: either of two angles whose sum is 180°.
Step-by-step explanation:
Answer:
PEMDAS, do multiplication first then, adddition, then subtraction
Step-by-step explanation: