Can I get help on this please

If f(x)=2x-6 and g(x)=3x+9, find (f-g)(x)

Solve with work both bert and ernie received an increase in their weekly salaries. bert's salary increased from $520 to $520. ernie's salary went from $580 to $645. find the percent of increase for each salary. what was the larger of the two percents ?

Solve each quadratic equation by factoring and using the zero product property. [tex]x^2+6x+8=0[/tex]