If a cashier has 21 dimes less than nickles and 15 quarters more than the nickles, for a total of $12.05. How many quarters, nickles and dimes does she have?

The value √10 and √15 are plotted on the number line

How to choose the sign of the radical in the denominator of the formula for the distance from a point to a line.

Plz determine whether the polynomial is a difference of squares and if it is, factor it. y2 – 196 is a difference of squares: (y + 14)2 is a difference of squares: (y – 14)2 is a difference of squares: (y + 14)(y – 14) is not a difference of squares