Two equivalent fractions of the fraction 3 9

To solve the system of equations below, grace isolated the variable y in the first equation and then substituted into the second equation. what was the resulting equation? 3y=12x x^2/4+y^2/9=1

State if the two triangles are congruent. if they are, state how you know?

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?