Help please

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

The amount of data left on the cell phone six gb for 81.5 gb of data is used how much data is available at the beginning of the cycle

What is the sum of 25x + 15y and (-18x - 6y)