Answer:
20
Step-by-step explanation:
900-300=600
600÷30=20
Answer:
Theirs no equality
Step-by-step explanation:
.
Answer:
2:1 thats how i learnd it in highschool
Answer:
69
Step-by-step explanation:
to find f(3), we'll have to substitute x with 3
therefore,
f(3) = 19 × 3 + 12
= 57 + 12
= 69
You have a lot of questions here, I can help you with a few of them.
When you simplify the polynomials, you put together all of the terms that have the same degree. That means the variables have the same exponents. The number of terms are the items separated by plus and minus signs.
Here are the answers for the first three:
1)

2)

3)