Given (3a - b)O(a+3b) = a- 3ab + 4b?. Find 9 O 13.

That is correct! good job!

Anybody planning on traveling to a spanish-speaking nation sometime in the next months or so have to make a program so that can make a dissent conversation in spanish or just to understand when folks talk to them due to the fact by the time your trip rolls around you must be conversationally fluent or rather near to it with the assist. hope this

Acard is right! a card is your answer