Ajar contains nickels and dimes. there are 20 coins in the jar, and the total value of the coins is $1.40. write and solve a system of equations to determine the number of nickels and dimes in the jar.

Each equation given below describes a parabola. which statement best compares their graphs? x = 2y^2 x = 8y^2

Given that ot =5, xt=12, and ox= 13 is xy tangent to circle o at t? explain.

The number if marbles of different colors stored in a hat is listed below: 4 red marbles 10 green marbles 7 blue marbles. without looking in the hat, dan takes out a marble at random. he replaces the marble and then takes out another marble from the hat. what is the probability that dan takes out a blue marble in both draws?