Each pen costs $2.60. One extra pen is given to a customer as a gift for every 5 pens bought. If Jack pays $41.60, how many pens will he get altogether? A) 16
B) 17
C) 18
D) 19

20 only answer if 100% sure most high school-aged teens are very active. a. true b. false

1- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis.2- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in the first question?

Finally, the arena decides to offer advertising space on the jerseys of the arena's own amateur volley ball team. the arena wants the probability of being shortlisted to be 0.14 what is this as a percentage? what is this as a fraction? what is the probability of not being shortlisted? give your answer as a decimal.