Business khalid charges $10 for a one-year subscription to his on-line newsletter. khalid currently has 600 subscribers and he estimates that for each $1 decrease in the subscription price, he would gain 100 new subscribers. what subscription price will maximize khalid's income? if he charges this price, how much income should khalid expect?

answer; i believe the correct answer is radioactive decay);

the first successful, urban blues recording, selling more than 75,000 copies, was made in year 1920.

mamie smith recorded the first commercially successful example of the urban blues,   with the recording of “crazy blues”."crazy blues" was recorded on august 10, 1920, in new york city. within a month of the release of “crazy blues” it had sold 75,000 copies.

answer; the landlord can sue the renter,and the renter loses the security deposit;