Miss greens science class is studying how forces affect a wagon being pulled across the floor. The diagram shows the forces being exerted on the wagon. In the above experiment, which is the outcome variable (dependent variable) • applies force
• net force
• speed of the wagon
• the number of forces acting on the wagon

Aproduction line at v. j. sugumaran's machine shop has three stations. the first station can process a unit in 7 minutes. the second station has two identical machines, each of which can process a unit in 16 minutes (each unit only needs to be processed on one of the two machines). the third station can process a unit in 10 minutes. ▼ is the bottleneck station, with a bottleneck time of nothing minutes per unit (enter your response as a whole number).