A theater was designed with 15 seats in the first row, 19 in the second row, 23 in the third row, and so on. Write a function that represents this seating pattern to determine how many seats are in any row.
a(n) = 15 + 4(n)
O a(n) = 15 + 4(n-1)
an) = 23 + 4(n)
an) = 23 + 4(n-1)

Researchers were interested in whether relaxation training decreases the number of headaches a person experiences. they randomly assigned 20 participants to a control group or a relaxation training group and noted the change in number of headaches each group reported from the week before training to the week after training. which statistical analysis should be performed to answer the researchers' question?

How many glue sticks are in a basket containing 96 scissors, if the ratio of glue sticks to scissors is 19 to 57.

The only way to identify an intercept is as an ordered pair. true false