Answer
Her monthly mortgage payments must be less than 805 in order to qualify for the mortgage.
Work Step by Step
Let x represent her monthly mortgage payments.
Her monthly mortgage payments, or x, must be less than 35% of her monthly income.
x must be less than 35% $\times$ 2300.
x $\lt$ 35% $\times$ 2300
x $\lt$ 805
Her monthly mortgage payments must be less than 805 in order to qualify for the mortgage.