Which expression is equivalent to 42 + 12?

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?

Which of the following expressions is equal to 2x^2+8

D. in a discrete probability distribution, the sum of the probabilities for the discrete variables will be > 1. true or false