What is the measure of eab in circle f

The answere  is 200 beacseu  100 time 2 is 200

The answer is 148, i can't really explain it, i got frustrated and guessed because all of my math was not giving me any of the answer choices

So  if  the sum of the enthalpies of the reactants is greater than the products, the  reaction  will be  exothermic.  if  the products side has a larger enthalpy, the  reaction  is  endothermic. you may wonder why  endothermic reactions, which soak up energy or enthalpy from the environment, even happen

Answerdistinguish between the mercalli scale and the richter scale;