Ineed to find out the question mark

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

On saturday morning, calls arrive at ticketmaster at a rate of 108 calls per hour. what is the probability of fewer than three calls in a randomly chosen minute?

The graph shows the function f(x) = (2.5)x was horizontally translated left by a value of h to get the function g(x) = (2.5)x–h.