What is the terminating decimal for 11/15

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 1/2 x (6 x 4)+3 + 2 show your work

Two years ago a man was six times as old as his daughter. in 18 years he will be twice as old as his daughter. determine their present ages.