2. Four big water bottles can hold 8 gallons of water. How much water can ten big water bottles hold?

16 1/2 gallons of water.

Step-by-step explanation:

Since 4 bottles can hold 8 gallons, and you need to know how much 10 can hold, you can multiply 4 and 8 times 2 so you get 8 and 16, and then if you choose 10 instead of 8 instead you would get the result of 10 bottles being able to hold 16 1/2 gallons of water.

I hope this helps you :D

use this formula:

p(a\b) = p(a and b)/p(b).

take it from here.

5x+2x=49

7x=49

x=7. 35 apples