Profit-and-loss analysis. jamal decides to mow lawns to
earn money. the initial cost of his electric lawnmower is
$250. electricity and maintenance costs are $4 per lawn.
a) formulate a function c(x) for the total cost of
mowing x lawns.
b) jamal determines that the total-profit function
for the lawn mowing business is given by
p(x) = 16x - 250. find a function for the total
revenue from mowing x lawns. how much does
jamal charge per lawn?
c) how many lawns must jamal mow before he begins
making a profit?

a) one student is chosen from classroom a, then a student is chosen from classroom b.  

step-by-step explanation:

independent events are ones in which the probability of one event does not affect the probability of the second event.

one student is chosen from classroom a; this does not affect the chances of choosing a student from classroom b.   this makes these independent events.

when one card is chosen from a standard deck and then set aside before a second card is chosen, the probability of the second card being chosen changes.   this makes them dependent events.

when one student is chosen from classroom a and then a second student is chosen from classroom a, the probability of choosing the second student changes.   this makes them dependent events.

when a letter is chosen from the alphabet and then a second letter is chosen, the probability of choosing the second letter changes.   this makes them dependent events.

d. all of the above

step-by-step explanation:

(x) - (y) = (1 + 4i)