X = 3y +9
2x – 3y = 9
help plz​

Achemist has 200 ml of a 10% sucrose solution. she adds x ml of a 40% sucrose solution. the percent concentration, y, of the final mixture is given by the rational function: the chemist needs the concentration of the final mixture to be 30%. how many milliliters of the 40% solution should she add to the 10% solution to get this concentration?

Xto the second power plus 14x plus 48. what are the factors? we are doing factoring trinomials with a=1

Is there an x intercept in the equation 60*1.15^x