It decreases by -.4 over 1
Step-by-step explanation:
By Pythagoras' Theorem, 6^2 + 8^2 = x^2.
x^2 = 36 + 64 = 100, x = 10.
If it has a line on top of the last number then it is considered repeating.
therefore, the first two are repeating and the last two are non-repeating.
Hope that helps!
the equation would be x-12=20.
the solution would be x=8.
