Answer:
= 8 × 8 sq. cm. = 64 sq. cm.
answer 64 sq
It’s not going to be C because 10 is already in the question
X- smaller number
y- larger number
5x=6+y
We know that
Based on the table
Percent%=[1-Decay factor]*100%
so
for decay factor=0.98
Percent%=[1-0.98]*100%----> 2%
for decay factor=0.50
Percent%=[1-0.50]*100%---->50 %
for decay factor=0.64
Percent%=[1-0.64]*100%----> 36%
for decay factor=0.23
Percent%=[1-0.23]*100%----> 77%
therefore
the answer is
36%