Pls! find g(x)+ f(x)=-3x+4 and g(x)=5x+12

The total number of photos on hannah’s camera is a linear function of how long she was in rome. she already had 44 photos on her camera when she arrived. then she took 24 photos each day for 6 days. what is the rate of change of the linear function that represents this

What’s the answer ? use the picture to see the problem

Askate shop rents roller skates as shown on the table below. which graph and function models this situation?