Answer:

Step-by-step explanation:
First, we change both denominators to the LCM (lowest common multiple) which is 8.

Since the denominators are the same, we can add the numerators.


or it can be written as

7 years
First of all, half of 18 is 9, and if you divide 18 by 2.5, it results in 7.2. I hope this helps!
Answer:
Step-by-step explanation:
-1-1 or 2-4 or 3-5 or 6-8 or 7-9 or 8-10
Answer:
x = 7/9
Step-by-step explanation: