<span>3[4(23)-52+7(8+42)-16]</span>
<span>3 x (4 x 8 - 52
+ 7 x (8 + 42) - 16)</span>
<span>3 x (32 - 52
+ 7 x (8 + 42) - 16)</span>
<span>3 x (16 – 52
+ 7 x (8 + 42))</span>
<span>3 x (16 - 25 +
7 x (8 + 42))</span>
<span>3 x (-9 + 7 x
(8 + 42))</span>
3 x (-9 +7 x
(8 + 16))
3 x (-9 + 7 x
24)
3 x (-9 + 168)
3 x 159
477
9.3333333333333333333333..............
or
-
9.33
19.18 / 2.8 = 6.85
So answer is D.6.850 h
The sum must be irrational in contradiction to it being rational
