Which of the following can be used to measure heart rate?

At his new job, jeremiah can choose an hourly rate of $9 plus a $50 weekly bonus for opening the store, or an hourly rate of $10 per hour with no opening bonus. the equations model his salary options. y = 9x + 50 y = 10x

Which expression is equivalent to 4 square root 6 divided by 3 root 2

James was playing a game with his friends. he won 35 points. then he lost 15, lost 40 and won 55. how did he come out