I need help with this question

Which letters from the table represent like terms? a and b b and c a and d b and d

Your best friend told you that last week scientists disco y that las vegas is responsible for abrupt climate changes. which do you think is best way to research that recent discovery? an encyclopedia usgs internet site a book in the library your best friend’s parents for your ! ❤️

3.4a=57.8 what is the the value of a