I need help plz help

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

Explain how you can use the associative property to evaluate (7x50)x4.

In a young single person's monthly budget, $150 is spent on food, $175 is spent on housing, and $175 is spend on other items. suppose you drew a circle graph to represent this information, what percent of the graph represents housing?