Answer:
5
Step-by-step explanation:
for the question, let's make a variable
Assume one number is X and we can get a equation like this:
X + 2X+7 = 22
X + 2X = 22 - 7
3X = 15
X = 5
Answer:
i
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
(3, 2) + (1, 3) = (3 + 1, 2 + 3) = (4, 5)
| (4, 5) | = = = ≈ 6.4 → C