(16 to the power of x) +3 = 4 to the power of (x+1) solve the equation

Which of the following system of equation is not equal to the system of equations is not equal to the system of equations shown below

If the line in the graph is shifted up two units which is the equation of the new line

Afitness center has 2 membership plans one has a low dollar sign up fee of 15 dollars and costs 38 dollars per month to join. a second plan has a higher sign up fee of 78 dollars but a lower monthly fee of 31 dollars for what number of days of the month is the coat the same