Answer:
a. 
b. 0.7
c. 0.7=70%=
Step-by-step explanation:
70% of 100 received an A, that is 70/100 times 100 equal to 70

a. 70% = 
b.
= 0.7
Notice that 70/100 is equal to 7/10 which is 0.7
c. 0.7=70%=
it is b.9 because u have to multiply (w×h×l)/3
B because pie radius square = area of a circle

Compare to standard equation of SHM

Here


Well the above one are for extra knowledge .
Solution:-







So.
