Amazon.com : Schwinn Replacement Bike Tire, Hybrid Bike Tire, Combination Tread for Paved Roads and Trail Rides, 700c x 38mm : Bike Tires : Sports & Outdoors $6.25

not as good as previous deal for 5.60 but still good. got 2 new tires and tubes for about $20.
I did go from 28c to these. basically in standard measure 1" to 1.5". no regrets so far. left out in sun for a couple hours, installed without any tools, used lever to remove old tire. actually was far easier than I expected, ymmv.
https://www.amazon.com/dp/B0030RSFQ6