Answer:
use the app socratic it’s step by step .
Step-by-step explanation:
The answer is 13n+13 because when combining like terms (18n and -5n), you get 13n and you're left with the number without a variable which is 13
Answer: 22
Step-by-step explanation:
10(3)-8
10(3)=30
30-8=22
Answer:
5sqrt3
Step-by-step explanation:
Using the pythagorean theorem, we have a^2+4^2=9^2
a^2 + 16 = 81
a^2 = 75.
a = sqrt75.
75 = 25*3. 25 is a perfect square, so sqrt75 = 5sqrt3
The answer should be 4, 4 can go into all of these numbers