(for forensic science) PRACTICE: The development of a larva actually has three stages, called the first instar, second instar, and third instar. For the blow fly species Phormia regina, the first instar stage requires 18 hours at 27 °C [80.6 °F] to develop. If larva collected from a body has just entered into the second instar stage, how long had they been growing if the body was inside a house where the thermostat was set at 20 °C [68 °F]? show your work! I have been stuck on this for the whole week day​