Answer:
umm iI not sure but i think it is
Step-by-step explanation:
write out expression
Answer:
[3(x+7)]/4
Step-by-step explanation:
[3(x+7)]/4
The probability of picking a black ball first is

, because there are 4 black balls and 1 white ball which is 5 balls in total. After picking the first ball, 4 balls remain - 3 black and 1 white, so the probability of picking a white ball is

.
So, the probability of picking a black ball first followed by a white ball is
it can not be a function because functions only have ONE input to each output
Alright! so 4×5=20. so that means he worked 20 hours on Sunday.Hope this helps! ;) (Sorry if I answered this incorrectly.....