Marshall learned to play a total of 4 pieces over the course of 2 weeks of piano lessons. In all, how many weeks of piano lessons will Marshall need before he will be able to play a total of 16 pieces? Assume the relationship is directly proportional.

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?