Whats 5/10 as a decimal

Acoin is tossed twice. let e e be the event "the first toss shows heads" and f f the event "the second toss shows heads". (a) are the events e e and f f independent? input yes or no here: yes (b) find the probability of showing heads on both toss. input your answer here: preview

Which of the fallowing best completes the sequence 5,10,15, a) 30 b) 22 c)25 d)35

How can constraints be used to model a real-world situation?