I'm stuck in this exercise, help me. I will type according to what is written here. The temperature t of a greenhouse (in degrees Celsius) is determined, depending on the time of day, by the expression t = -h² + 22h-85.

a) What is the temperature in that greenhouse at 8 am?
b) What time does the temperature reach 36 ° C?

To solve the letter a, just replace the temperature value instead of x.

To solve the letter a, just replace the temperature value in place of y.