Dawn’s friend melissa lives 3 blocks west and 4 blocks south of dawn. Dawn’s friend caroline lives 5 blocks east and 1 block north of dawn. How far do melissa and caroline live from each other?

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?

How do i do this activity, is appreciated

In the xy-plane, if the parabola with equation passes through the point (-1, -1), which of the following must be true?