I don't understand help me please math!!

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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 ?

Factor x2 – 8x + 15. which pair of numbers has a product of ac and a sum of what is the factored form of the