The simple interest on a certain sum of money is 3/8 of the the sum after 6 1/4 years. find the the rate per cent charged.

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 square root of 9x plus 7 plus the square rot of 2x equall to 7

How many 3/8s are in 6 plz someone tell me now