Write 63 as product of prime factors

Me because some of question i don’t understand

Which of the following is the true for f(x) = 5cos

The price for gasoline is represented by the equation y=3.69x, where y represents the total price for x gallons of gasoline. on a graph, the number of gallons is represented on the horizontal axis, and the total price is represented on the vertical axis. determine whether each statement describes the graph of the equation. select true or false for each statement