B. because there is a variable (2b - 5)
7 x 24 = 168 hours a week
168 x 60 = 10,080 minutes a week
10,080 x 60 = 604,800 seconds in a week
4/6 numbers are greater than 2
1/2 chance of flipping heads
Multiply the two fractions together to get the probability
1/2*4/6=2/6=1/3
1/3 probability
22/36 simplified is 11/18. I hope this helps. Tell me if you need an explanation! : )
