Answer
Elisa have $5 available to put aside for savings each week .
Explanation :
As given
If elisa gets an allowance of $25 per week and spends $10 of it on food and drink, $5 on entertainment and $5 on miscellaneous things .
Elisa saving each week = Allowance per week - Spends on food - Spend on drink - Spends on entertainment - Spends on miscellaneous things .
Putting the values in the above
Elisa saving each week = $25 - $10 - $5 - $5
Elisa saving each week = $25 - $20
= $ 5
Therefore Elisa have $5 available to put aside for savings each week .