Answer:
x-1
Step-by-step explanation:
it is x-1 because 1 is subtracted from a number and the number is x. when it says subtracted from you flip the equation and put the first number last and put a minus sign.
The answer of this question is B
2.16 x 10 to the power of -4
Vertical angles are non-adjacent angles that directly intersect to form each other
* hope that’s correct!