After which action would the concentration of a solution remain constant?

Of the 168 hours in a week as a full time student you should spend how many hours per week on school work?

Lois and clark own a company that sells wagons. the amount they pay each of their sales employees (in dollars) is given by the expression 12h+30w12h+30w12, h, plus, 30, w where hhh is the number of hours worked and the number of wagons sold. what is the amount paid to an employee who works 666 hours and sells 333 wagons?

Balanced rock sits on a thin spike of rock in a canyon what forces keep the rock balanced on its tiny pedestal