What is the expression for (5/6) to the power of 2

Element x decays radioactively with a half life of 8 minutes. if there are 450 grams of element x, how long, to the nearest tenth of a minute, would it take the element to decay to 37 grams?

How can the correlation in the scatter plot graph below best be described? positive correlation negative correlation both positive and negative no correlation

The lengths of all sides of a triangle are integers when measured in decimeters. one of the sides has length of 1 dm and another of 3 dm. find the perimeter of the triangle.'