How can you identify the parts of an expression using mathematical terms?

Which statement is always true? a negative exponent cannot be part of an expression's numerator. a negative base raised to the power of 2 has a negative value. a negative base raised to the power of 2 has a positive value. any number to the first power is zero.

Which equation matches the graph shown ?

What unit of been sure would be appropriate for the volume of a sphere with a radius of 2 meters