975
Explanation
Let x represents the number of hours Randy worked;then
Randy gets paid $15 per hour for a 40 hour work week
[tex]\begin{gathered} if \\ x\leq40 \\ \text{wage}=15\cdot x \\ \text{wage}=15x \end{gathered}[/tex]and
$25 per hour for each hour he works over 40 hours.
let y represents the hours after 40,he worked,so
[tex]\begin{gathered} y=55-40 \\ y=15 \\ wage2=15\cdot25 \end{gathered}[/tex]now, let x = 55 hours
[tex]\text{wage}=\text{wage}1+\text{wage}2=600+(15\cdot25)=975[/tex]So, he will get