Answer:
the exponent is 6............
Katie won't have more than 100 shells until the 7th day
Multiples of 8 through 60 are 8, 16, 24, 32, 40, 48 and 56
No. of favorable outcomes= 7
Thus, P(E)=7/60
12 is the diameter. We need the circumference which you get by multiplying 12x2 sides which = 24 which is the circumference