What does y and c equal if y=2c+3 and y=-2x-3

Given the function f(x) = log base 4(x+8) , find the value of f^-1(2)

Which ordered pair (c, d) is a solution to the given system of linear equations- c+2d=13 -9c-4d=-15

Aresearch group wants to find the opinions’ of city residents on the construction of a new downtown parking garage. what is the population of the survey downtown shoppers downtown visitors downtown workers city residents