PLEASE HELP I WILL GIVE BRAINLIEST! (NO LINKS) Carlos and Clyde challenged each other to a 140 mile motorcycle race (70 miles going west and then 70 miles east, returning to the starting position). Carlos traveled at a constant speed of 60 mph going west but returned at a constant speed of only 40 mph. Clyde traveled at a constant speed of 50 mph in each direction.

1.) How much time did it take each participant to finish the race?
2.) Who won?

Asix-sided die of unknown bias is rolled 20 times, and the number 3 comes up 6 times. in the next three rounds (the die is rolled 20 times in each round), the number 3 comes up 6 times, 5 times, and 7 times. the experimental probability of rolling a 3 is 10 %, which is approximately % more than its theoretical probability. (round off your answers to the nearest integer.)

Which of the following statements are true? (select all that apply.) a quasi-static process is one in which the system is never far from being in equilibrium. when a system can go from state 1 to state 2 by several different processes, the amount of heat absorbed by the system will be the same for all processes. the internal energy of a given amount of an ideal gas depends only on its absolute temperature. when a system can go from state 1 to state 2 by several different processes, the work done on the system will be the same for all processes. when a system can go from state 1 to state 2 by several different processes, the change in the internal energy of the system will be the same for all processes. for any substance that expands when heated, its cp is greater than its cv.

Acollection of nickels and quarters is worth $2.85. there are 3 more nickels than quarters.how many nickels and quarters are there?