The ratio of red circles to blue circles is 1: 3 how many more red circles would need to be added to make the ratio of red to blue 3: 1?

The perimeter of a square is80-64y units. which expression can be used to show the side length of one side of the square?

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 ?

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