Suppose that the world's current oil reserves is R = 2000 billion barrels. If, on average, the totalreserves is decreasing by 21 billion barrels of oil each year, answer the following:A.) Give a linear equation for the total remaining oil reserves, R(t), in terms oft, the number ofyears since now. (Be sure to use the correct variable and Preview before you submit.)R(t)=B.) 9 years from now, the total oil reserves will bebillions of barrels.Question Help: Video Message instructorSubmit QuestionJump to Answer