1 Which point represents 27 on the graph? 2 DB E С A -4 -3 -2 1 2 3 4 Point A O Point C Point D Point E and pls actually answer cuz i am stressing right now

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?

Idon't get undoing if its pass adding and subtracting so can someone ? x-2 over 5 = 18

What is the answer to this problem? ignore the work. what is the correct answer?