A car travels 55 miles per hour 1. The unit rate speed for this car is ___ miles per hour

2. if the car has driven 1/2 (0.5) hours, it traveled ___ miles

3. if the car has driven 1 1/2 (1.5) hours, it has traveled ___ miles

4 If the car has traveled 110 miles, it will take ___ hours

!! No explanation needed please! :) correct answer gets brainlesst !!

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