Let the monthly allowance = x
Sean puts half of his monthly allowance in savings
So, saving = 1/2 x
he spends 2/5 of his allowance on game rentals
So, game rental = 2/5 * x
The rest will be for buy snacks
Rest = 3.75
So,
[tex]x-(\frac{1}{2}x+\frac{2}{5}x)=3.75[/tex]solve for x:
[tex]\begin{gathered} \frac{1}{10}x=3.75 \\ \\ x=10\cdot3.75=37.5 \end{gathered}[/tex]So, the answer will be:
Monthly allowance = $37.5