Write an equivalent expression to 6a - 3b - 8 + 7b - 2a

Awater holding tank measures 105 m long, 50 m wide, and 8 m deep. traces of mercury have been found in the tank, with a concen- tration of 60 mg/l. what is the total mass of mercury in the tank? answer in units of kg.

Can somebody 1. what is the formula for finding the vertical distance between two points on a coordinate plane?

The median for the given set of six ordered data values is 29.5 9 12 25 __ 41 48 what is the missing value?