There are 15 students seated in the first row of an auditorium. The number of students seated in each row increases by 2 for every row after the first row. a) Write the explicit formula in simplest form for the arithmetic sequence.

Find the value of the cosine for angle a

Astore manager records the total visitors and sales, in dollars, for 10 days. the data is shown in the scatter plot. what conclusion can the store manager draw based on the data? question 3 options: an increase in sales causes a decrease in visitors. an increase in sales is correlated with a decrease in visitors. an increase in visitors is correlated with an increase in sales.

Adj has a total of 1075 dance and rock songs on her system. the dance selection is 4 times the size of the rock selection. write a system of equations to represent the situation.