An iphone charger that costs $15.75 has a 6.75% sales tax. What is the final cost of the charger?

Hi my sisters and brothers can tell me the answer because i don’t understand the question

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.

Select the number of ways in which a line and a circle can intersect