4/5 + 8/9. First we have to find a common denominator for

and

.

Now we are going to add:

Make

a mixed number:

So the answer is
Answer: See Screenshot
Step-by-step explanation:
Answer:
21-(-7)=28
Step-by-step explanation:
1. Do same, change, opposite.
21-(-7)
21+7
=28
Um I think the expression would then be h - 0.5
Hope this helps!
It um might be B.
im extreamly sorry im not the best at math