A population's doubling time is 60 years. Find its growth rate per year. Round your answer to one decimal place.

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?

Find the value. a. 0.003 b. 0.03 c. 0.3 d. 3

Hi, can anyone show me how to do this problem? 100 points for this. in advance