Identify the activities that directly cause indoor air pollution.

Leo has b boxes of pencils. each box contains 6 pencils. he has a total of 42 pencils. the equation that represents this situation the value of b that makes the equation true the first one is b+6=42,6b=42,b=42+6,or 42b=6 the second one are 7,836 48

Determine the relationship of ab and cd given the following points

The parabola opens: y=√x-4 (principal square root) up down right left