Explanation:
1) 1 : to Prevent a burning we use tongs
2:it can burn our skin hoa it's help
2) 1: because pulley helps in water draw from a well
3) 1: second class lever has mechanical advantage more than one as load is in between fulcrum an effort making the effort arm longer than the load arm
40 meters times 1 meter over 100 centimeters equals 0.4 meters. 1.3 meters + 40 centimeters =. 1.3 m + 0.4 m = 1.7 m. The answer is 1.7 meters