1.On factorising (3a^2bc + 9ab²c + 21abc^2), we get : (a) 3abc (3a + 3b + 7c)
(b) 3abc (a + b + c)
(c) abc (a + 3b + 7c)
(d) 3abc (a + 3b + 7c)

Will give brainliest! aubrey was offered a job that paid a salary of $45,000 in its first year. the salary was set to increase by 2% per year every year. if aubrey worked at the job for 20 years, what was the total amount of money earned over the 20 years, to the nearest whole number?

Abacteria population is tripling every hour. by what factor does the population change in 1/2 hour? select all that apply

In which direction does the left side of the graph of this function point? f(x) = 3x3 - x2 + 4x - 2