I need help please it need to be correct

Ab based on the given diagram, if m_1 = 60° then m 2 = 30 60 90 180

2x minus y equals 6, x plus y equals negative 3

The relative growth rate for a certain type of fungi is 60% per hour.a small culture has formed and in just 6 hours the count shows to be 20,273 fungi in the culture.what is the initial number of fungi in the culture?