John has €500 and he is planning on to go to America so he needs to switch his euro to dollars, the exchange rate is €1 to $1.1, then he decided not to go to America so he switched it back to euro, the exchange rate was $1 to €0.85. How much money did John lose to the bank

Aretha wanted to gather data about the cost of local bowling leagues in her area. she plotted the data and determined that the average bowling league costs consist of a one-time registration fee and a monthly fee modeled by the equation y = 15x + 20. identify and interpret the y-intercept in this model. the y-intercept is 20. this is the cost per month. the y-intercept is 20. this is the cost of registration. the y-intercept is 15. this is the cost of registration. the y-intercept is 15. this is the cost per month.