Answer:
my guess is 2,3, and 1.
Step-by-step explanation:
in the ending it's always a finish of "definition of something"
After the given is always the substitution
and the angles forming a linear pair sum to 180 is after the substitution because you're now solving it.
maybe wrong but thats what i think the answer is.
Question 2 is $500 and Question 3 is 5
a vector multiplied by a scalar is equal to it's image. The expression above gives an equation and after solving, it gives you the image