Where are the answers and explanations of all the old problem sets? I can't find them and really need them. Please help and give me a link or something. Thanks.
Someone please help, I still do not know how to do these question types. I have reviewed the curriculum many times, but it is still not sticking.
Any suggestions?
can someone help me understand question 1? if they say the price of oil is connected to the price of cement, how can answer B be the correct answer? wouldnt oil be the source of energy to all the kilns?