Answer:
142
Step-by-step explanation:
Basically, in f (x) whatever x is will go in the parenthesis.
So,
The two negatives that are next together will turn positive.
When multiplying two negative numbers turn positive.
9 x 9= 81
81+63-2
144-2=142
80 degrees
the sides add upp to 180 degrees so 180-70-30=80
Step-by-step explanation:Wait im confused.
its the 3rd answer i think