Yes, if you can live with an inaccurate speedometer.
My 2002 Venture van uses 205/70 R15 tires. Dennis
Yes, you can
Yes you can
no you cannot
no
Yes, they can
Yes, you can
Yes you can use 205 60 r 16 tires in place of 205 50 r 16. They are only slightly higher.
Yes you can put 205 40 17 on the front matched with 215 40 17 on the rear
One can purchase 205 45 17 tires by going to a Firestone store. The Firestone company sells a number of tires for different automobiles, including 205 45 17 tires.
NO, rim size is incorrect.
That depends on the year, model, and other factors. Check the label on the driver's door jamb for factory tire size.