A salt solution was made by mixing 16 quarts of 2% salt solution and 12 quart of a 51% salt solution. Find the concentration of the new mixture . The concentration of the new mixture is ___%

Apopulation of 1500 insects grows exponentially, by a factor of 3 every week. select all equations that represent or approximate the population, p, as a function of time in days, t, since the time it was 1500.