Answer:
3(7a + 9)
Step-by-step explanation:
21a + 27
3(7a + 9)
When you expand
3 x 7a + 3 x 9
21a + 27
<h2>
Answer:</h2>
Both angles will add up to 180°, so we set up a equation where (4x - 19)° and (6x + 9)° equal 180°.

Our answer is <em>x = 19</em>.
I think it's 12 but not really sure only because I never really learned this
Your answer is 26.
We have to go at this kind of backward.
We find the average by adding up the numbers, then dividing by how many numbers we have.
In this example, we will have 5 numbers...so
x divided by 5 = 18
x/5 = 18
x = 90
The sum of all 5 numbers is 90, so then subtract the 4 numbers you already know to find the one you’re missing. (We’ll call it n)
90 - 8 - 12 - 18 - 26 = n
90 - 64 = n
n = 26
Please let me know if you have any questions.
Answer:
B
Step-by-step explanation:
<h3>Arkadaşım cevap istiyorsan benim soruma cvp ver</h3>