How do i convert 100 yards in 12 seconds to yards per second

In the 30-60-90 triangle below side s has a length of and side r has a length

Atriangle has side lengths of x, x+11, and 3x+5. what is the perimeter?

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