Bus A will take 1 hour and will arrive back at 6pm, because 30+30=60 and there are 60 min is one hour. Bus B will arrive 1 hour 10 minuets. 35+35=70, Knowing that it will arrive there in over an our because there is more than 60 min, and the extra ten is the amount of minuets. SO bus B will arrive at 6:10pm. Hope I explained this right.
Ok, so first of all, you need to plug the functions into their places. Since f(x) = 6x and g(x) = x + 3, you'll plug them in accordingly: (6x) * (x + 3).
Then you'll multiply them together to get 6x^2 + 18x. You can't combine like terms then because of the square in the first term.
So your final answer is 6x^2 + 18x.
I hope this helps you at least a little bit. Thanks for your time!
