A pie chart shows the expenditure of a household. Food expenditure is represented by angle x, medication by 90 degrees, and another category by 70 degrees. Rent expenditure is the remaining category.

To solve this problem, we need to determine the angles for each category of expenditure and then use the given financial information to find the total expenditure.

Step 1: Identify the angles for each category.
From the pie chart, we have:

• Angle for Food: $A_{\text{food}} = x$
• Angle for Medication: $A_{\text{medication}} = 90^\circ$
• Angle for an unlabeled category (let's call it 'Other'): $A_{\text{other}} = 70^\circ$
• Angle for Rent: $A_{\text{rent}}$ (This is the remaining sector)

The sum of angles in a circle is $360^\circ$.

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