London mixes 6 parts yellow paint with 3 parts blue paint to make green She adds 1 more part of yellow to change the shade of green. What is the new ratio of yellow to blue?
3 to 7
4 to 7
6 to 4
7 to 3

Solve the system of equations. y= 2x y= x^2 - 15

What is the solution to the equation in the & show work i’m very

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?