Select all the correct answers. Which triples are Pythagorean triples?

(8, 15, 17)

O (1,3,2)

o (9, 12, 16)

O (8, 11, 14)

O (20, 21, 29)

O (30,40,50)

Sera sells t-shirts at the beach. she believes the price of a t-shirt and the number of t-shirts sold are related. she has been experimenting with different prices for the t-shirts. she has collected a data set with five pairs of data; each consists of the price of a t-shirt and the number of shirts sold. the independent variable, which will go on the x-axis, is . the dependent variable, which will go on the y-axis, is the