The first row of a theater has 15 Seats. Each subsequent row has 3 additional seats. Which of the following is an explicit expression that represents the number of seats in a row? (A) a(n) = 15 + (n - 1)3
(B) a(n) = 3 + (n - 1)15
(C) a(n) = 15 - (n - 1)3
(D) a(n) = 3 - (n + 1)5

Juliana says that she can use the patterns of equivalent ratios in the multiplication table below to write an infinite number of ratios that are equivalent to 6: 10. which statement explains whether juliana is correct? she is correct because she can multiply 6 and 10 by any number to form an equivalent ratio. she is correct because 6: 10 can be written as 1: 2 and there are an infinite number of ratios for 1: 2. she is not correct because the multiplication table does not include multiples of 10. she is not correct because 6: 10 is equivalent to 3: 5 and there are only 9 ratios in the multiplication table that are equivalent to 3: 5.