Select the correct answer. What does an individuals effective tax rate indicate?

A the average income earned
B the average tax rate
C the minimum tax rate
D. the next year's tax rate

Question and answers are in the attached picture. you so much in advance.

Since opening night, attendance at play a has increased steadily, while attendance at play b first rose and then fell. equations modeling the daily attendance y at each play are shown below, where x is the number of days since opening night. on what day(s) was the attendance the same at both plays? what was the attendance? play a: y = 8x + 191 play b: y = -x^2 + 26x + 126

Ab and bc form a right angle at point b. if a= (-3,-1) and b= (4,4) what is the equation of bc?