Please help with this. I need you to fill out the grid. Thank you. Will give +30 pts.

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?

Which of the following would be a good name for the function that takes the weight of a box and returns the energy needed to lift it?

What expression is equivalent to log3(x+4)