Answer:36
Step-by-step explanation:

for every 7 students there are 4 girls, so for every 84 there must be 48
7*12=84
4*12=48
so, in all 84 students there are 48 girls
so amount of boys=84-48=36
there are 36 boys
Answer:
10 percent
Step-by-step explanation:
Answer:
when I find out the two others ill edit this,sorry i'm kinda slow lol
Step-by-step explanation:
<u>Team Wins Losses</u>
Tigers 20
Vikings 25 10
Cougars 30 12
Pirates 35
11. 3333333333 is the answer to your question your welcome
Answer:
Precambrian period
Step-by-step explanation:
Since the Great oxidation period = 2.4 Billion years ago era = Precambrian period.
Micro-fossils attributed to cyanobacteria are abundant during the Proterozoic that came later 2,5 billion years ago and ended 540 million years ago,