Acar drives 100meters in 5 seconds what is the car’s average speed

Two variables, x and y, vary inversely, and x=12 when y=4. what is the value of y when x=3?

The pyramid below was dissected by a horizontal plane which shape describes the pyramid horizontal cross section

Every weekday, mr. jones bikes from his home to his job. sometimes he rides along two roads, the long route that is shown by the solid lines. other times, he takes the shortcut shown by the dashed line. how many fewer kilometers does mr. jones bike when he takes the shortcut instead of the long route?