a football coach paces back and forth along the sidline during a close rivalry game. the diagram below shows several of the coaches positions at various times. at eachmarked position, the coach turns and moves in the oppisite direction in other words, the coach moves from position A to B to C to D.

the skeletons of most mammals reach a certain size and then stop growing. however, many animals, including some mammals, keep growing throughout their lives. kangaroos, for example, just keep growing and growing until they die. also, the longer an animal lives the greater the chance it might catch some deadly disease.

if the person is shown to have +90n, then ans is -10n.

if the person is shown to have -90n, then ans is +10n.