Answer:
-15
Step-by-step explanation:
-3 + -12 = -15
Answer: yes, indeed it is i forgot how it is but it is
Answer:
It is 35x+20
Step-by-step explanation:
Answer:
B:
Step-by-step explanation:
1. Substitute
for c:
2. Solve substitution: 
3. Compare
to calculated answers when 
4.
when
is 