In need of help for geometry

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 ?

The price of an item has been reduced by 30%. the original price was $30. what is the price of the item now ?

If you are trying to move an attached term across the equal sign (=), what operation would you use to move it?