What number belongs in the blank space? 16,25,36, _, 64,81. explain.

*worth 50 points

7. if the value of x varies directly with the value of y, and x = 3 when y = 21. what is the valu y, and x = 3 when y = 21. what is the value of x when y = 105?

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.'

Using graph paper, determine the line described by the given point and slope. click to show the correct graph below.(0, 0) and 2/3