What is the equation for a geometric sequence with a first term of 3 and a second term of −9? an = 3(−12)n − 1 an = 3(12)n − 1 an = 3(−3)n − 1 an = 3(3)n − 1?

12 3 4 5 6 7 8 9 10 time remaining 42: 01 ryan gathered data about the age of the different dogs in his neighborhood and the length of their tails. which best describes the strength of the correlation, and what is true about the causation between the variables?