How many real roots does the following equation have?
x4 -81 = 0

Abag has more green balls than blue balls, and there is at least one blue ball. let bb represent the number of blue balls and let gg represent the number of green balls. let's compare the expressions 2b2b and b + gb+g. which statement is correct? choose 1

Plzzz i beg u so much asap ! what is the slope of this line? enter your answer in the box.

What is the slope of the line shown below?