Pl hel What is an equation of the line that passes through the point (4,2) and is perpendicular to the line 4x+3y=21

What is the definition of exponential decay?

Urgent? will give brainliest to the first correct answer what is the area of the figure?

The table below shows the angle measurements for triangle abc and triangle xyz. if triangle abc is similar to triangle xyz, what does angle z equal, in degrees?