-18 +30s -72t +12u is the answer
3x^7
I hope this helps. I usually good with math so you can ask me whenever
Answer = 150.75
50.25 * 5 = 251.25
50.25 * 2= 100.5
251.25-100.5= 150.75
Not sure how to go about doing the math but it will accelerate at 9.8meters per second
