Only 2 stuff to do : 3 tina designed an electric skateboard that has a speed of 4 miles per hour. she wants to write a function that represents the distance the skateboard will travel over a given amount of time. which is the dependent variable in this scenario? the skateboard the speed the distance traveled the time traveled

Astudent simplified a rational expression as shown.

Which of the following is a function? a.) {(-2, -4/5), (-1,-,,-1)} b.) {(-2,,1/,3/,1)} c.) {(-22)} d.) {(-21)}

Amountain climber starts a climb at an elevation of 453 feet above sea level at his first rest stop he has climbed 162 feet and by his second rest stop he has climbed another 207 feet its getting late in the day so the climber starts his way down if the climber desends 285 feet how much does he need to ascend or descend to return to the original starting point