Explanation:
The question has missing details nevertheless we can make head way with the information on ground.
Given that Laura's overall monthly living expenses are $1,600
in order to calculate her savings for the month we need to know her income for the month, that is the overall sum she has at hand before incurring any expenses(this is the missing detail).
Say this overall amount is "x"
her saving for the month =
![(x- 1600)](https://img.qammunity.org/2021/formulas/mathematics/middle-school/m3xf54hgcinnziyqyw5d6vhxoismehrbzm.png)