Help i need help on this question​

The vertices of a triangle are a(7,5), b(4,2), c(9,2). what is m

The function show two sisters' savings account and the rate at which they plan to deposit money

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.