Determine if the following lines are parallel, perpendicular, or neither. y = 4x + 4 y = 1/4x – 3

The activity of the water in the 80 gallon barrel can be determined by taking into account the presence of H{eq}_3 {/eq} atoms in 0.5% of the water molecules. Activity refers to the effective concentration of a solution and takes into account any interactions between the solute and solvent. In this case, the presence of H{eq}_3 {/eq} atoms in a small percentage of the water molecules may affect the overall activity of the water. Assuming that the H{eq}_3 {/eq} atoms do not significantly alter the properties of the water, the activity can be calculated using the formula: activity = (concentration of water) x (activity coefficient) The concentration of water is simply the volume of water in the barrel, which is 80 gallons or \approx imately 302.8 liters. The activity coefficient takes into account any interactions between the solute (in this case, the H{eq}_3 {/eq} atoms) and the solvent (water). If we assume that the H{eq}_3 {/eq} atoms do not significantly affect the properties of the water, we can use an activity coefficient of 1. Therefore, the activity of the water in the 80 gallon barrel is: activity = (302.8 L) x (1) = 302.8 L