Answer:

Step-by-step explanation:
Given


Required
Determine the volume of air
Density is calculated using:

Substitute values for Density and Mass

Convert lb to grams


Solve for Volume


Convert mL to L


Represent using scientific notation

Approximate

Answer:
(-2,21)
Step-by-step explanation:
2 days ago, Paulo's commute time was halfway between his commute times 8 and 9 days ago.
8 days ago means that x-coordinate -8 represents this day. Count 8 units to the left and find that when x = -8, y = 24 minutes.
9 days ago means that x-coordinate -9 represents this day. Count 9 units to the left and find that when x = -9, y = 18 minutes.
Find halfway commute time between points (-8,24) and (-9,18):

then coordinates that Paulo should graph are
(-2, 21)
(-2 means 2 days ago, 21 is the halfway)
Answer:
12
Step-by-step explanation:
Answer:
Option 4
Step-by-step explanation:
You divide 1/2 by the whole problem
5x-15=20
and go from there its too long to explain but its option 4