The demand for personal computers in the home goes up with household income. for a given community, we can approximate the average number of computers in a home as

q = 0.3455 ln x ? 3.041 10,000 ? x ? 125,000

where x is mean household income. your community has a mean income of $40,000, increasing at a rate of $3,000 per year. how many computers per household are there? (round your answer to four decimal places.)
per household

how fast is the number of computers in a home increasing? (round your answer to four decimal places.)
computers per household per year