How do you work the problem -2=m over 16

Acourgette seed and a pumpkin seed is planted p(courgette seed germinates) 4/5 and p(pumpkin seed germinates) = 1/6 what is the probability that both seds germinate

I’m which figure is point g an orthocenter

Describe the 2 algebraic methods you can use to find the zeros of the function f(t)=-16t^2+400.