80$ because 50 divided by 3 is 16.67 and 80 divided by 5 is 16 so yeah $80
Answer:
0.55
Step-by-step explanation:
diference= 25/100*2.20=0.55
Division of a fraction is the equivalent of multiplying by its reciprocal
ex.

i suggest you try to remember this concept
in terms of your question
from this point, just multiple the numerators together and denominators together, then simplify if necessary
fyi- difference of squares

relating that to

also a side note, you might want to factor out the 4 first in the top fraction
Answer
R ~ 0.03
Explanation
For Pearson’s Product Correlation Coefficient, an R value can only be in the range of -1 to +1.
-1 = perfect negative correlation
+1 = Perfect positive correlation
Values in between and approaching 0 means there is weak to no correlation.