Need help with number 12 n 13 Asap

Although changes result from business transactions, the equality of the fundamental bookkeeping equation must remain. t/f

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?

What is the equation of a line passing through the point (6,1) and parallel to the line whose equation 3x=2y+4