Answer:

Step-by-step explanation:
we know that
The surface area of a rectangular prism is equal to the area of its six rectangular faces
using the net
The surface area is equal to
![SA=2[(16)(6)]+2[(16)(8)]+2[(8)(6)]](https://tex.z-dn.net/?f=SA%3D2%5B%2816%29%286%29%5D%2B2%5B%2816%29%288%29%5D%2B2%5B%288%29%286%29%5D)


you know 1 gallon is 16 cups.
1/2 a gallon will be 8 cups.
So, its asking how much is 1 1/2 gallon to cups. Add 16+8= 24.
24 is the answer
<span>88.80625 is the answer because I used a calculator.</span>
14/2 is equivalent to 7/1
Answer:
13.
Step-by-step explanation:
x+x+5=21
2x+5=21
2x=16
x=8