This question is not that clear, so let me rewrite it here -
Eva sees a dolphin 3.2 meters below sea level and a bird meters above sea level. Which of the expressions represents the vertical distance between the dolphin and the bird?
Now we are given that Eva sees the dolphin at a distance 3.2 meters below sea level, respectively she sees a bird at meters above sea level. The vertical distance between the dolphin and the bird should thus be the distance dolphin is below sea level + distance of bird above sea level -
<u><em>The expression that represents the vertical distance between the dolphin and bird should be 3.2 + 47 / 10.</em></u>
Well 1234567 is a number and
7 is in one's place
6 is in ten's place
5 is in hundred's place
4 is in thousand's place
3 is in ten thousand's place
2 is in thousand's place
1 is in million's place
I hope I have answered it right
( 4,20)is the correct answer
Answer:
none of the above
Step-by-step explanation:
The grocer's revenue will be the product of the number of loaves sold (30-2x) and their price (2.50+0.50x).
Revenue will be positive for values of x between those that make these factors be zero. The number of loaves sold will be zero when ...
... 30 -2x = 0
... 15 -x = 0 . . . . . divide by 2
... x = 15 . . . . . . . add x
The price of each loaf will be zero when ...
... 2.50 +0.50x = 0
... 5 + x = 0 . . . . . . . multiply by 2
... x = -5 . . . . . . . . . . subtract 5
Revenue will be positive for any number of increases greater than -5 and less than 15.
_____
D is the best of the offered choices, but it is incorrect in detail. -5 is a number less than 15, but will give zero revenue.