If f(x)=6x-2, what is the value of f(4)?

Please explain I don’t understand these questions.

Over the course of the school year, you keep track of how much snow falls on a given day and whether it was a snow day. your data indicates that of twenty-one days with less than three inches of snow, five were snow days, while of the eight days with more than three inches of snow, six were snow days. if all you know about a day is that it is snowing, what is the probability that it will be a snow day?

Robin spent 25% more time on his research project than he had planned he’s been an extra h ours on the project which of the following expressions could represent the number of hours rob actually spent on the project

Table of values relation g values x, y 2,2 /3,5 /4,9 /5,13 which ordered pair is in g inverse? a(-2,2) b(-3,-5) c)4,9) d( 13,5)