Answer:
24
Step-by-step explanation:

Negative and another negative makes a positive.

Add the fractions first.

5/5 is equivalent to 1. 7 5/5 becomes 8.

Add the numbers.

I hope this helps!
To answer equation there is only one solution which is, x=12
Answer:
i need to guess that it be inverse and probably a.
Step-by-step explanation:
The height of the water tank is 6.
L x W x H = V (volume)
15 x 10 x 6 = 900 cubic feet