If you look at all of the numbers upside down then you get the sequence 86 ?? 88 89 90 91 so the ?? Will be 87, and the closest to upside down 87 is 18
I be leave it is the 3rd one.
Answer:
Step-by-step explanation:
If you meant to type x+1<21, then we simplify this inequality by subtracting 1 from both sides, ending up with x < 20.
I do not recognize what your "4" represents.
2(3)(2) + 2(4)(3) + 2(4)(2)
2(6) + 2(12) + 2(8)
12 + 24 + 16
52
Hope this helps!