Solve for x, find the measure of all angles hurry!

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?

In the diagram, the ratios of two pairs of corresponding sides are equal to prove that almn - axyz by the sas similarity theorem, it also needs to be shown that x 6 z un z zz un = 2x zləzz lezy

Math i have no idea how to do a and b