The answer is C because when it reflects the 4 stays negative and the 6 because negative because it reflected on the negative side
Hope this helped! :))
Each term after the first is obtained by multiplying the previous one by -3 so the answer is -81 , 243
4,000×0.035×2=280
.................
The one wall would be 13 feet long.
13+13+13+13= 52 feet.