It is known that the point P(−9, 18) belongs to the graph of the function y= k/x . Find k.

Ricardo ran the 400 meter race 3 times his fastest time was 54.3 seconds his slowest time was 56.1 seconds if his average time was 55.0 seconds what was his time for the third race

The equation respenting the left table is

For the equations below which statement is true ? -2x=14 6x=-42