Help someone with both of these ASAP thank you!!

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

Abacteria population is tripling every hour. by what factor does the population change in 1/2 hour? select all that apply

Moira has a canvas that is 8 inches by 10 inches. she wants to paint a line diagonally from the top left corner to the bottom right corner. approximately how long will the diagonal line be?