A spherical balloon is inflated with gas at the rate of 500  cubic centimeters per minute. How fast is the radius of the balloon increasing at the instant the radius is 40  centimeters? ​

Find  if . ​

Find the derivative of the function. ​ ​

Use implicit differentiation to find an equation of the tangent line to the ellipse  at . ​

What is the name of this mineral?

Extra Credit: What is the more specific name for the luster of this mineral?       

What is the name of this igneous rock?

Is this metamorphic rock foliated?

Extra Credit: What is the name of this rock?

Compensation surveys are typically focused on which  set of factors?