Answer:
Very top one
Step-by-step explanation:
the dot is in between -34 and -35 so 34.5
and the arrow is pointing left which means less than
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,
Answer:
x = 3
y = 18
Step-by-step explanation:
you replace y with 6x
x + 6x = 21
combine like terms
7x = 21
divide both sides by seven
x = 3
then you plyg 3 into the other equation
y = 6(3)
y= 18
Answer:
About 7 times
Step-by-step explanation:
2x - 1 > 7 ; Start
2x > 8 ; Add 1 to each side of the inequality
x > 4 ; Divide both sides by 2
So, x have to be less than 4 in order to be in the solution set.