20 points! Will mark brainliest! Find the number of elements in the following sets. Complete parts ​(a) and ​(b) below.

a. ​{x|x is a letter in the word unconsciousness ​}
___ elements

b. The set of letters appearing in the word interconnection .
___ elements

Aflute is on sale for 20% off. including the discount and 8% tax, the sales price is $216.

Peter applied to an accounting firm and a consulting firm. he knows that 30% of similarly qualified applicants receive job offers from the accounting firm, while only 20% of similarly qualified applicants receive job offers from the consulting firm. assume that receiving an offer from one firm is independent of receiving an offer from the other. what is the probability that both firms offer peter a job?

Two years ago a man was six times as old as his daughter. in 18 years he will be twice as old as his daughter. determine their present ages.