1. all functions are relations.
2.
-7 + 3(-12) ÷ (-3)
-7 - 36 ÷ -3
-7 - (-12)
-7 + 12
5
3.
f(n) = n² - n f(-4)
f(-4) = -4² - (-4)
f(-4) = 16 - (-4)
f(-4) = 16 + 4
f(-4) = 20
hope this helped, God bless!
I believe the answer is 2.333_ ect. dont ask me how it took a lot of complicated mental math.
that is what i got based on what i can see of the question anyway.
Answer:
80 questions
Step-by-step explanation:
100%/20%=5%
5×16=80
Yeah your answer is right