Please help thank you so much

Aflower has 26 chromosomes. to create a new flower, how many would a sperm cell have what is called?

Atype of plant is introduced into an ecosystem and quickly begins to take over. a scientist counts the number of plants after mmonths and develops the equation p(m)= 19.3(1.089)^m to model the situation. most recently, the scientist counted 138 plants. assuming there are no limiting factors to the growth of the plants, about how many months have passed since the plants werefirst introduced? a)o 6.1b)0.6.6c)10 72d)o 23.1

Let f(x) = 5/x and g(x)=2x2+5x. what two numbers are not in the domain of f o g