10 boxes an hour is the independent variable since we control how many hours we work. 35 is what we add since that is how many boxes we already have. Finally 70 boxes is how many boxes we want in total, therefore the constant and variable equals 70.
The area is 21cm squared. u would have to find the length of the bottom triangle which is 14. than multiply that by the height which is 3. finally divide that all by 2 and youll get the area
