He needs 1.08$ hope this helps!!
$1.78 is your answer
The answer is 21 because if you subtract 17 from 17 and 38 you get 21. Z=21.
Answer:
2.88 minutes
Step-by-step explanation:
Solution can be found in attachment.
2/5
12
you can pack one pack in 20 min
there are three 20 min in one hour
multiply three times the four hours and you get 12
1/21
Cards: 2,3,4,5,6,7,8 7 cards
1st card :5
P(5) = number of 5's / total
= 1/7
Then we keep the card
Cards: 2,3,4,6,7,8 only 6 cards left
card less than 4: 2,3
P (card less than 4) = number of cards less than 4/ total cards
= 2/6 = 1/3
P (5, no replacement, card less than 4) = P(5) * P( less than 4)
= 1/7 * 1/3
=1/21