Which of the following are solutions to the inequality -7x + 14 > -3x - 6? select all that apply.

1.) -10
2.) 10
3.) -5
4.) 5
5.) -3
6.) 3
7.) 0

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?

How do i do this activity, is appreciated

Don't know how to find x given these segment lengths