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How to write 3 tenths and 5 tenths as a decimal

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 ?

Me complete this proof! prove that a quadrilateral is a square. me with the steps for this proof.