What is 8+9-3772637+73662763662773662736037 738

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

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.

Rewrite 9 log, x2 in a form that does not use exponents. 9log, x = log, x