Question

Please help!!!!!

Answer 1

for 1st, i can 'SEE' only 3 faces....

Answer 2

for 2nd % error is calculated as
(final - initial) / initial * 100
so here initial = 10, final =50

Answer 3

*sorry, final =15

Answer 4

thank you so much @hartnn ! :) thank you all of you come here for help! :)