acar is travelling at 72km/ hr and when the breaks are applied it experiences a uniform retordation 2m/sec how long does it take the car to stop and how far does it travel from the instant the breaks are applied

When conducting an investigation to determine which type of fertilizer produces the most flowers on a plant, which variable would be graphed on the x-axis once you collected the data? a. type of fertilizer b. amount of flowers c. amount of water d. number of days that the plants grew