Since she receives 1.5 times more for overtime, because she was working on saturday, then her hourly wage for those days is:
[tex]\text{wage}=1.5\cdot15=22.5[/tex]
She worked a total of four hours on that saturday, therefore to find the amount she made that day we need to multiply the time she worked by her hourly wage.
[tex]\text{salary=22.5}\cdot4=90[/tex]
She made $90 on that day. The total amount she made that week is:
[tex]\text{sallary = 90+}525=615[/tex]
She made $615 that week.
