one year has 12x2 fortnight so 24
A.her yearly salary is
[tex]\begin{gathered} 24\times1425.30 \\ =34207.20 \end{gathered}[/tex]B.now we do the opposite operation, divide
[tex]\begin{gathered} \frac{42150}{24} \\ =1756.25 \end{gathered}[/tex]C. we look for the difference with a subtraction
[tex]\begin{gathered} 1756.25-1425.30 \\ =330.95 \end{gathered}[/tex]