<span>6x^2 - 21x = 3x(2x - 7)
hope it helps</span>
Sorry I know this late, but the answer is 40 MPH, I don't know if this helps! I HOPE SO THO!! <3
Answer:
53
Step-by-step explanation:
72 = x + 3x - 4
72 = 4x - 4
72 + 4 = 4x - 4 + 4
76 = 4x
76/4 = 4x/4
x = 19
3(19) - 4 = 53
Hope this helps!
C=100.I used the Pythagorean theorem just in case next time you run into this problem.