Answer:
5.5
Step-by-step explanation:
In the tenths place you have a 4, so you have to round from the number behind it (the 7). You round 4 up to 5 because 7 is higher than 5 so you round up.
the probability of getting tails up is 30/50 or most likely
the probability of getting a blue marble is 18/5 or least likely
Using the rule of exponents
× = , then
× = =