PLEASE HELP!! Since 2005, the amount of money spent at restaurants in a certain country has increased at a rate of 7% each year. In 2005, about $280 billion was spent at restaurants. If the trend continues, about how much will be spent at restaurants in 2018?
About $___ billion will be spent at restaurants in 2018 if the trend continues.
(Round to the nearest whole number as needed.)

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.