A student makes paper airplanes. She can make 3 airplanes from each sheet of paper.
She wants to have 105 paper airplanes ready for her birthday party. She has 9 paper
airplanes in her paper airplane hanger left over from last year. What is considered the
independent variable in this situation?
A. 3 airplanes from each sheet
B. 105 paper airplanes
O
C. 9 paper airplanes in the hanger
D. 32 sheets of paper