Calculate the average time the car took to reach each checkpoint. Record the average time in Table D of your Student Guide. The average time to the first quarter checkpoint is
seconds.

The average time to the second quarter checkpoint is
seconds.

The average time to the third quarter checkpoint is
seconds.

The average time to the finish line is
seconds.

answer; ///(positive correlation);

i feel as if they would both catch on before to long because they would see them to frequent

d. i assume the underlined word is "role." reformat if it isn't.

explanation:

role is closest to part because when replacing words, "playing a vital decision," "playing a vital activity," and "playing a vital dollar" don't make logical sense. the only meaningful choice is "playing a vital part."

this fits one of merriam-webster's definitions of role: "a function or part performed especially in a particular operation or process."