It’s the third one.. I think
(b1+b2)h+PH is the formula for surface area of a trapezoidal prism
First, you have to break the number down by expanding it to find the different number values.
6,735
↓
6,000 + 700 + 30 + 5
This shows us the values of the 7 in 6,735 is 700.
Answer: 700