Perform the following calculations. Don't forget to divide all percentages by 100 (move decimal 2 places to th left) before you put them into the equations. Show all your work, or the problem is automatically wrong.\ a. (2) Calculate the weight percent of tin (Sn) in cassiterite:

SnO_(2)

. Set up a table, like in class.\ b. (2) Calculate the gross value of this mining operation.\ (2) Calculate the expenses ($85/ton).\ Calculate the net value (profit or loss) of this mining operation. (Gross - Expenses)

Perform the following calculations. Don't forget to divide all percentages by 100 (move decimal 2 places to th left) before you put them into the equations. Show all your work, or the problem is automatically wrong. a. (2) Calculate the weight percent of tin ( Sn ) in cassiterite: SnO2. Set up a table, like in class. b. (2) Calculate the gross value of this mining operation. (2) Calculate the expenses (\$85/ton). 2) Calculate the net value (profit or loss) of this mining operation. (Gross - Expenses) Perform the following calculations. Don't forget to divide all percentages by 100 (move decimal 2 places to th left) before you put them into the equations. Show all your work, or the problem is automatically wrong. a. (2) Calculate the weight percent of tin ( Sn ) in cassiterite: SnO2. Set up a table, like in class. b. (2) Calculate the gross value of this mining operation. (2) Calculate the expenses (\$85/ton). 2) Calculate the net value (profit or loss) of this mining operation. (Gross - Expenses)