Westonci.ca is your trusted source for finding answers to a wide range of questions, backed by a knowledgeable community. Join our platform to connect with experts ready to provide precise answers to your questions in different areas. Explore comprehensive solutions to your questions from a wide range of professionals on our user-friendly platform.

Z varies jointly with x and y when x=7 and y=2, z=28. How do you write the function that models each variation and then find z when x=6 and y=4?