Question 368938
Let's analyze the percentages given of take home pay...
50%  - bills
20%  - invested
23%  - miscellaneous
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93%  - Total so far
 7%  - Must be the percentage for the groceries
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Given that the grocery bill totals $560, we can set up a proportion to solve
(part/whole) = (part/whole)

(560 is part of the income/x is the unknown whole) = (7percent is part/100 is the whole percentage)
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(560/x)  =  (7/100)

7x = 56000

x = 8000
The couple's monthly income is $8000 per month