You can work no more than 20 hours next week. you need to earn at least $92 to cover you weekly expenses. your dog-walking job pays $6 per hour and your job as a car wash attendant pays $4 per hour. write a system of linear inequalities to model the situation. let x be hours worked dog walking and y be hours worked at car wash.

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.