In 1990, the population of area a was about 60 miltion. during the 1990s, the population of this area increased an average of about 0.4 million per year the population of area b was a bout 53 million in 1990. the population of this area increased an average of about 1 milion per year during the 1990s. assume that the rate of growth of these areas remains the same. estimate when the population of the area b would be equal to the population of the area a

The difference in population at the start of the decade is 60-53=7 million. The growth of Area B is 1-0.4 = 0.6 million per year faster than for Area A. Each year, the difference in population gets smaller by 0.6 million, so the difference of 7 million will disappear in 7/0.6 ≈ 11.7 years, late in the year 2001.

y = 0.77(x)

step-by-step explanation:

the jacket retains this value after 23% cut or retains 77% of original value. plug original 87 jacket price for x and the remaining value should be y.