Please help me in this math problem

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

What is the solution to this system of equations? y= 2x - 3.5 x - 2y = -14

Me i’m stuck on all these questions besides the two bottom ones