EASY FOR PEOPLE THAT KNOW HOW TO DO MATH, HELP NEEDED

Perform the required operations on the following functions given: f(x)= 3-x; g(x)= -2x find g[f(x)]

Which function has the domain x> -11

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.