Answer:

Step-by-step explanation:
Given
See attachment
Required

From the question, we understand that she can only get blood from O or A groups. So, the probability is represented as:
This is calculated as:

Using the American row i.e. the blood must come from an American.
We have:


So, we have:


Andre walks for 16 minutes. 80% of 10 is 8 and times that by 2 is 16 so 16 minutes.
Answer:
Detailed solution is given in the diagrams attached:
Ok, so what this means is if it's negative, leave it. if it's positive, make it negative
so the range would be -5,-3,0,-3,-5
point are
(-5,-5)
(-3,-3)
(0,0)
(3,-3)
(5,-5)
18 oz is equivalent to 1.125 pounds. If this is so, 1.125 pounds = 20 small bags. We need to figure out how much would fit 18 pounds.
18 / 1.125 = 16
16 times 20 = 320 bags
They could fill 18 pounds with 320 bags.