Which is the intersection of rt and su?

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 many days was the temperature above 90 degrees?

How do businesses a country's economy? a. by investing in goods and services b. by increasing the unemployment rate c. by making profits