Answer:
I would not like to take your place but I can help you find someone. I don't have a laughing emoji. (On my computer)
$161.50
Step-by-step explanation:
the revenue for an item of $85 with a 90% markup is $161.50
Answer:n=-2 or n=4
Q is not inversible if det(Q)=0
The number of candidates is 136.
17+7x=x+5
6x=-12
x=-2
Hope it helps you
