Which expression is equivalent to (3b +2r) + (4b + r )

True or false? a triangle can be circumscribed about a given circle

12. the amount of money in a bank account decreased by 21.5% over the last year. if the amount of money at the beginning of the year is represented by ‘n', write 3 equivalent expressions to represent the amount of money in the bank account after the decrease?

Apositive number a or the same number a increased by 50% and then decreased by 50% of the result?