Answer :
Given the word problem, we can deduce the following information:
1. Myrna budgets 22% of her annual income for housing.
2. She budgets $400 per month for housing.
To determine Myrna's annual income, we find her annual budget for housing first as shown below:
Annual Budget for Housing = $400 per month( 12 months) = $4,800
Since Myrna budgets 22% of her annual income for housing, our equation for her annual income would be:
[tex]4800=.22x[/tex]So,
[tex]\begin{gathered} 4800=.22x \\ \text{Simplify and rearrange} \\ \frac{4800}{.22}=x \\ x=21,818.18 \end{gathered}[/tex]Therefore, the answer is:
d. $21,818