.The sum of two number is 40 when 13/4 multiplied by the larger number is subtracted from 11/2 multiplied by the smaller number. The difference is-25 Find the number ​

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?

3382-299=3383- ? fill in the blank?

He that is measured at 220° is a reflex angle. the opposite angle is obtuse. find the measure of obtuse .