A student answered 40 problems on a test correctly and received a grade of 80%. How many problems were on the test, if all the problems were worth the same number of points?

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?