Can somebody plzzz help only if you can see the questions

The ratio of men to women working for a company is 4 to 5 . if there are 90 women working for the company, what is the total number of employees?

(mc 02.03) what set of reflections and rotations would carry rectangle abcd onto itself? reflect over the y-axis, reflect over the x-axis, rotate 180° rotate 180°, reflect over the x-axis, reflect over the line y=x reflect over the x-axis, rotate 180°, reflect over the x-axis rotate 180, reflect over the y-axis, reflect over the line y=x

If f(x)=3 over x+2 - square root x-3 then f(7)=