Answer:
Cross-sectional
Step-by-step explanation:
Cross sectional study is a type of observational study that analyzes data from a population of a representative subset at a particular point in time.
baki baki ni ore nani wo kokoro wo da yo kunagona no kudake nani wo?
20 - k/15 = 17
20 - 17 = k/15
3 = k/15
k = 45
Absolute value would be 35!
