Jim has 20-inch wheels on his bicycle (their diameter is 20 inches). The tires are worn out, and he would like to cut them into pieces to use as a bumper on something he's making. Estimate the length of rubber Jim would get from his two bicycle tires. ≈ 60 in. ≈ 40 in. ≈ 120 in. ≈ 136 in.