Please help me I need help

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

There were 25 students who answered to a survey about sports. four-fifths of them like football. how many students like football?

What is the slope of the line that contains the points (-5, 6) and (14. - 7)?