Determine the solutions to the quadratic equation -5x2 + 10x + 15 = 0. Select the best answer from the choices provided.
A.
{-1, 9}
B.
{-2, 3}
C.
{-1, 3}
D.
{-2, 9}

What is the least common factor of 6 and 8

Find the ratios of the corresponding sides

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?