Answer:

Step-by-step explanation:
Cost of one cup of coffee=$2
The original amount of money on the gift card= $30
Juan's expenses in buying coffee, after
morning are
.
The amount of money left,
, on the card
(Original amount)
(Total expenses)

Hence, the equation for,
, the amount of money remaining on the card is

<span>[-1,-1,1]
or
</span><span>[-2,-2,2]
</span>.....
Dot Product = 0
Answer:
The volume is 75
Step-by-step explanation:
because the volume is the width, length, and height, add them together.