Answer:
=900
Step-by-step explanation:
The number of viruses was 4000 times greater than number of protozoa.
Step-by-step explanation:
Given,
Number of protozoa = 
Number of viruses = 
Let,
x be the number of times number of viruses is greater than number of protozoa.
Number of viruses = Number of time * Number of protozoa

Dividing both sides by 

The number of viruses was 4000 times greater than number of protozoa.
Keywords: division, scientific notation
Learn more about division at:
#LearnwithBrainly
The temperature decreased by 4 degrees.
In order for two lines to be parallel, the slope of the equations have to be the same.
y = 3/4x + 7 —> 3/4 is the slope.
For the new equation, the line has to go through (-12,36) which means that the y- intercept has to be 36.
The new equation would be y = 3/4x + 36.
Here is a graph to prove my point.
The red one is the original, the blue one is the one parallel to the original.
Hope this helped:$