Answer:
Its B im pretty sure
Step-by-step explanation:
4.4a-7.3 is equal to
4.4a= 7.3 divide both sides by 4.4
a= 1.66
Event 4 (impossible), Event 3 (probability is 7/20), Event 1 (probability is 6/12 which is greater than 7/20), and Event 2 (certain to happen)
He would need to sell 28 because
12.50*28=350 and 350+50=400
80 possible 2 digit passwords
5040 possible 4 digit PIN's with no repeats
can't see 7 to answer pls tell