Here is your answer
D. [tex]<b>153 pounds </b>[/tex]
REASON :
Given,
weight of b bricks= 25+2b
Replacing b by [tex]{4}^{3}[/tex], we get the required weight
So required weight is-
[tex]25+2×{4}^{3}[/tex]
[tex]= 25+2×64[/tex]
[tex]= 25+128[/tex]
[tex]= 153 pounds[/tex]
HOPE IT IS USEFUL