If x is Cullen's salary, then 4 1/2% of his salary is equal to $2,025.00 (the amount he contributed to charity). First, we need to know that 4 1/2% is equivalent to:
[tex]4\frac{1}{2}\text{\%}=\frac{4\cdot2+1}{2}\text{\%}=\frac{9}{2}\text{\%}=4.5\text{\%}[/tex]Then:
4.5% of x = $2,025.00
[tex]\begin{gathered} \frac{4.5}{100}\cdot x=2025 \\ x=\frac{2025\cdot100}{4.5} \\ \\ \therefore x=\text{\$}45,000 \end{gathered}[/tex]Answer: C
