Please answer with clear instructions so that i can apply this to other questions

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 ?

3382-299=3383- ? fill in the blank?

What are the domain and range of the function f(x)=2^x+1