How to round a decimal to the whole number

Consider a bag that contains 220 coins of which 6 are rare indian pennies. for the given pair of events a and b, complete parts (a) and (b) below. a: when one of the 220 coins is randomly selected, it is one of the 6 indian pennies. b: when another one of the 220 coins is randomly selected (with replacement), it is also one of the 6 indian pennies. a. determine whether events a and b are independent or dependent. b. find p(a and b), the probability that events a and b both occur.

If a=0.333333 and b=0.55555, what is the value of a+b

There are 180 white lockers in a school. there are 3 white lockers for every 5 blue lockers blue. how many lovkers sre there im tje school