Can someone plz helpp ?Ill give brainliest IF correct !

If 1 is divided by the sum of y& 4.the result is equal to 3 divided by 4, find the value of m

These tables represent a quadratic function with a vertex at (0, -1). what is the average rate of change for the interval from x = 9 to x = 10?

When solving this problem: 3025/5.5 = a/90.75 you get 49912.5 which would be the length of one of the sides of a square when the area is only 90.75 inches. is that answer correct, why, and how is it possible?