Let f(x) = 27x5 − 33x4 − 21x3 and g(x) = 3x2. Find f of x over g of x.

Planning for the possibility that your home might get struck by lighting and catch on fire is part of a plan

You decide instead to take the train there. the train will take 135 minutes. convert this into hours and minutes.

Complex numbers multiply √-4 * √-25 and show all intermediate steps. alternative notation is sqrt(-4) * sqrt(-25).