I need help please please help me find the answer???

Item 1 solve for s. s+24=90 −114 −66 66 114

What is the value of n in the equation -1/2(2n+4)+6=-9+4(2n+1)

The input to the function is x and the output is y. write the function such that x can be a vector (use element-by-element operations). a) use the function to calculate y(-1.5) and y(5). b) use the function to make a plot of the function y(x) for -2 ≤ x ≤ 6.