Suppose you have 60 kg of a radioactive material that decays 50% of its mass every year how much material would you have left after 4 years?

Which of these people has balanced their checkbook correctly? oa. gary: the balance in his check register is $500 and the balance in his bank statement is $500. b. gail: the balance in her check register is $400 and the balance in her bank statement is $500. c. gavin: the balance in his check register is $500 and the balance in his bank statement is $510.

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much

Which is the solution to the inequality? 2 3/52 1/15 b< 3 2/15 b> 3 2/15