What is 19,0000 times 36,6000

For how answer my question this will be the last question can you answer in math subject

If f(x) = 4x – 3 and g(x) = 8x + 2, find each function value a. f[g(3)] b. g[f(5)] c. g{f[g(-4)]}

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16