Does anybody know a good website to learn japenese? (hope i put this in the right subject lol)

As oil prices rose during 2006, demand for alternative fuels increased. ethanol, one alternative feul, is made from corn. according to an article in the wall street journal the price of tortillas which are made from corn also rose during 2006. the price spike in tortillas is part of the ripple effect from the ethanol boom. draw demand and supply graph for corn market and use it to show the effect on this market of an increase demand for an ethanol. be sure to indicate the equilibrium price and quantity before and after the increase in demand for ethanol.

Write the equation of a line in slope intercept form that passes through (2 -2) and is parallel to 2x+4y=8

Apko pata hai ka kistra poti karta hai? plz muja patao