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

Anyone know? is appreciated! will mark brainliest if correct!

Match each whole number with a rational, exponential expression 3 square root 27^2find the domain and range of the exponential function h(x)=125^x. explain your findings. as x decreases does h increase or decrease? explain. as x increases does h increase or decrease? explain.

Asample of 200 rom computer chips was selected on each of 30 consecutive days, and the number of nonconforming chips on each day was as follows: the data has been given so that it can be copied into r as a vector. non.conforming = c(10, 15, 21, 19, 34, 16, 5, 24, 8, 21, 32, 14, 14, 19, 18, 20, 12, 23, 10, 19, 20, 18, 13, 26, 33, 14, 12, 21, 12, 27) #construct a p chart by using the following code. you will need to enter your values for pbar, lcl and ucl. pbar = lcl = ucl = plot(non.conforming/200, ylim = c(0,.5)) abline(h = pbar, lty = 2) abline(h = lcl, lty = 3) abline(h = ucl, lty = 3)