ANSWER: 34% more A+ donations because it is most common type of blood type more than ab-. ( PLEASE MARK BRAINLIEST)
Answer:
324 km²
Step-by-step explanation:
The prism shown is a square pyramid
The volume of a square pyramid can be calculated by using this formula

where l = length of base, w = width of base and h = height
We are given the following dimensions...
length of base = 9 km
width of base = 9 km
height = 12 km
To find the volume of the pyramid, we plug in these given values into the formula
Hence,

V = 324
Answer: c= 49/4
Step-by-step explanation: