Sally puts $8,500 into a savings account that pays out 4% interest annually. Sally is a single taxpayer whose only other

[answerhappygod]

Sally puts $8,500 into a savings account that pays out 4%
interest annually. Sally is a single taxpayer whose only other
income this year is $120,000 in ordinary income from her salary.
However, she is not considered a high income taxpayer.
assume Sally payed a flat tax rate of 22% on all of the
interest income (i.e., equivalent to facing the same MTR on each
dollar of interest income because it does not push you into the
next tax bracket). Sally's after-tax rate of return on the savings
account is _____%.