Sarah has a collection of nickels, dimes, and quarters worth $9.25. she has 10 more dimes than nickels and twice as many quarters as dimes. how many coins of each kind does she have?

Mr. jones determined that the equation y = 98 - 16/5 x could be used to predict his students' unit test scores, based on the number of days, x, a student was absent during the unit. what was the meaning of the y-intercept of the function? (by the way the 16/5 is a )