Help pls.

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

36 inches/second = yards/minute how many yards?

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?