Tina walked 16 miles for a fundraiser. she walked 4 times as far as lia. how far did lia walk?

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

David estimated he had about 20 fish in his pond. a year later, there were about 1.5 times as many fish. the year after that, the number of fish increased by a factor of 1.5 again. the number of fish is modeled by f(x)=20(1.5)^x. create a question you could ask that could be answered only by graphing or using a logarithm.

I’ve been trying all day to figure this puzzle out. i need the work for it aswell. it is a factoring polynomials tarsia. the image is below.