I need help with this A. The domain is the set of all real numbers.
B. The domain and range are equal.
C. The domain is (-infinity,0)
D. The range is (-infinity, positive infinity)

Multiply and simplify. 2x2y3z2 · 4xy4x2 how to do?

Match each set of points with the quadratic function whose graph passes through those points

The bottom of ignacio's desktop is 74.5cm from the floor. ignacio's 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