A guppy farmer is trying to decide how to spend her money to produce guppies faster. She rears a guppy population by adding a few adults to a large pool and then letting the population grow through many generations with plenty of food(no resource limits). Which of the following would you advise her to do?

A. Buy a variety of guppy with a birth rate that is three times higher.
B. Rent two more pools from her neighbor and add the same initial number of guppies to each.
C. Start with three times as many guppies in her one pool.
D. Any of these options should work just as well as the others.

The monthly demand equation for an electric utility company is estimated to be p equals 60 minus left parenthesis 10 superscript negative 5 baseline right parenthesis x, where p is measured in dollars and x is measured in thousands of killowatt-hours. the utility has fixed costs of $3 comma 000 comma 000 per month and variable costs of $32 per 1000 kilowatt-hours of electricity generated, so the cost function is upper c left parenthesis x right parenthesis equals 3 times 10 superscript 6 baseline plus 32 x. (a) find the value of x and the corresponding price for 1000 kilowatt-hours that maximize the utility's profit. (b) suppose that the rising fuel costs increase the utility's variable costs from $32 to $38, so its new cost function is upper c 1 left parenthesis x right parenthesis equals 3 times 10 superscript 6 baseline plus 38 x. should the utility pass all this increase of $6 per thousand kilowatt-hours on to the consumers?