Mia bought a used car for $9,500. It is expected that the value of the car will decrease by an average of $750 each year. Which function can be used to find the
value of the car in x years after Mia purchased it?
A. f(x)=95000-750x
B. f(x)=95000+750x
C. f(x)=-750(x+9500)
D. f(x)=-9500(x-750)

The bottom of ignacio's desktop is 74.5cm from the floor. ignacios sits in his adjustable chair, and the tops of his legs are 49.3cm from the floor. each clockwise rotation of the knob on the chair raises ignacio's legs by 4.8cm. write an inequality to determine the number of clockwise rotations, r, ignacio could make with the knob without his legs touching the desk.