The original price of a pair of sunglasses was 30.the sale price is 27.what is the percent of decrease

Find the number of liters in 12.8 gal of gasoline. round to the nearest hundredths

Given the equation f(x)=a(b)x where the initial value is 40 and the growth rate is 20% what is f(4)

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.