Help 20 point question

What are the domain and range of f(x)=[1/5]x

Simplify 15(x - 4)(x -1)-3(x + 4)(x - 1) with steps

The table below shows the approximate height of an object x seconds after the object was dropped. the function h(x)= -16x^2 +100 models the data in the table. for which value of x would this model make it the least sense to use? a. -2.75 b. 0.25 c. 1.75 d. 2.25