Astudent writes 5y*3 to model the relationship the sum of 5y and 3. explain the error

Which expression is equivalent to (3^2)^-2 a.-81 b.-12 c.1/81 d.1/12

Read the equations in the table below. then drag a description of the situation and a table to represent each equation. indicate whether each of the relationships is proportional or non-proportional.

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.'