15. A science teacher has a supply of 20% saline solution and a supply of 50% saline solution.
How much of each solution should the teacher mix together to get 60 mL of 28% saline
solution for an experiment?
(1 point)
16 mL of the 20% solution and 44 mL of the 50% solution
44 mL of the 20% solution and 16 mL of the 50% solution
16 mL of the 20% solution and 16 mL of the 50% solution
044 mL of the 20% solution and 44 mL of the 50% solution

Explain how you can use the associative property to evaluate (7x50)x4.

Answer asap ill give ! ’ a sample of radioactive material decays over time. the number of grams, y , of the material remaining x days after the sample is discovered is given by the equation y = 10(0.5)^x. what does the number 10 represents in the equation? a. the half-life of the radioactive material, in days b. the amount of the sample, in grams, that decays each day c. the time, in days, it will take for the samples to decay completely d. the size of the sample, in grams, at the time the material was discovered

Due to a packaging error, 4 cans labeled diet soda were accidentally filled with regular soda and placed in a 12 pack carton of diet soda. two cans were randomly selected from this 12 pack. what is the probability that both cans were regular soda?