Step-by-step explanation:
Step-by-step explanation:
Expand: 4.2×5.1×x+4.2×6.8
4.2×5.1×x to (21.42)x
Simplify: 21.42x+4.2×6.8
4.2×6.8 = 28.5628.56
21.42x+28.56
Prob of tails times prob of rolling more than 3
0.5 × 0.5 = 0.25
25%
<span>83.212121 or fraction form is </span>83 7/33<span> </span>
