I really need help please i don’t understand detailed explanation please

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

The parabola opens: y=√x-4 (principal square root) up down right left

The graph shows the charges for a health club in a month. make a function table for the input-output values. writes an equation that can be used to find the total charge y for the number of x classes