Which expression makes the equation true? x^8 = ( )^2

The step function g(x) is defined as shown.what is the range of g(x)? ***answer choices in picture.

Brainlest answer can you find the area and circumference of a circle given the radius or diameter? if its yes or no explain why

Jackie purchased 3 bottles of water and 2 cups of coffee for the family for $7.35. ryan bought 4 bottles of water and 1 cup of coffee for his family for 7.15. how much does each bottle of water cost? how much does each cup of coffee cost?