30 points! verify the identity (picture below): can you me not only answer this but go through all the steps as well that would be great, .

Find the solution of system of equation y= x-4 y=4x+2

It says factor each expression 49x-28?

5. (04.07)which of the following exponential functions goes through the points (1, 12) and (2, 36)? (2 points)f(x) = 3(4)^xf(x) = 4(3)^-xf(x) = 3(4)^-xf(x) = 4(3)^x