Soumya

what is the difference between notocord and backbone.

The difference between compound interest and simple interest on a certain principal for two years at 20% rate of interest is Rs. 25. What is the Principal amount ? (Answer with theory)

Point(1,0) is mapped to point A by the origin-centered rotation with a radian magnitude of pi/7. Give the exact equivalent of this magnitude in degrees. Give the exact length of the shorter arc from (1,0) to A

Yes 90 .