The sum of eight times a number and fifteen is seven

Identify the parent function that can be used to graph the function f(x)= (1/4x)^3

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.

What are the measures of angles a, b, and c? show your work and explain your answers. 25 points