Help me please!! I don’t know what I’m doing

Adj has a total of 1075 dance and rock songs on her system. the dance selection is 4 times the size of the rock selection. write a system of equations to represent the situation.

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

The function f(x) = 14,600(1.1)* represents the population of a town x years after it was established. what was the original population of the town?