B. Write the equation for each of the following situations: (use k as the constant of variation) 1. The lengths (1) of the rectangles with constant area 60 varies inversely as the widths (w). 2. The illumination (L) received by an object varies inversely as the square of the distance (d) of the object from the source of light. 3. At constant temperature, the volume (V) of a gas varies inversely as the pressure (P). C. Find the missing variable given the condition: "y varies inversely as x”. 1. y = 15, when x = 3; when y = 9, x=? 2. y = 36, when x = 1/2; when x = 6, y = ? 3. y = 100, when x = 3/4; when y = 3, x = ?​