300 cm/s = (300*60*60/100000=10.8) km/h
At the very least 42.15 x 2 = 84.30 + 20 =104.30 + taxes
If you are looking for the median number, it would be the number in the middle which is 50
So first you need to open the brackets, so it would be x+2+4x-122=180. Then we can add the 4x and the other x to make 5x, and then by doing 2-122 we get -120. This gives us the equation 5x-120=180. We then isolate the variable by moving the -120 to the other side of the equation and becoming a positive, so it would look like 5x=180+120. Then, we have 5x=300. 300 divides by 5 is 60 making X=60. Hope this helps!
