Help pls will give you brandy

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 ?

Is the power produced directly proportional to the wind speed, give reasons for your answer?

What number line represents the solution set for the inequality -1/2 greater than or equal to 4