Help please,

Question down below :)

Noel is hoping to make a profit (in $) on the school play and has determined the function describing the profit to be f(t) = 8t – 2654, where t is the number of tickets sold. what does the number 8 tell you?

If a runner who runs at a constant speed of p miles per hour runs a mile in exactly p minutes what is the integer closest to the value p

This summer the number of tourists in salem increased 4.5% from last years total of 426000. how many more tourists came to salem this summer