Caroline has $2.55 in her purse and nickels and dimes. the number of nickels is nine less than three times the number of dimes. find the number of each type of coin.

Factor the expression using gcf 9b+45

What value is a discontinuity of x squared plus 8 x plus 4, all over x squared minus x minus 6?

Find each value of the five-number summary for this set of data. [note: type your answers as numbers. do not round.] 150, 120, 136, 180, 158, 175, 124, 162 minimum maximum median upper quartile lower quartile