I assume that 0.53 with a bar means the decimal fraction in which 3 is repeating.
24/45, 8/15, and 48/90 all result in the same decimal value. Thus, we are simply looking for the one that is fully simplified.
The correct answer is 8/15.
Hope this helps!
3y = - 2x + 6
y = - 2/3x + 2
slope = - 2/3x
It is hard to tell what you mean by 2x2. If it means 4x, then the answer is 4x+3 but with x being substituted with -1. Therefore, the answer is -1.