From september 1981 to september 1984 the enrollment at a particular school declined to 11%. if the number of students enrolled at that school in september 1984 was 712 what was the enrollment in september 1981?

a) 78 b) 634 c) 701
d) 790 e)800

Kelly is a salesperson at a shoe store, where she must sell a pre-set number of pairs of shoes each month. at the end of each work day the number of pairs of shoes that she has left to sell that month is given by the equation s=300-15x , where s is the number of pair of shoes kelly still needs to sell and x is the number of days she has worked that month. what is the meaning of the number 300 in this equation

Hi, can anyone show me how to do this problem? 100 points for this. in advance

Melanie is buying a bathing suit that costs 39.99. she is given a discount at the cash register of $6.00 when she scratched 15% off on a game piece for a store promotion. what will the sale price of melanie’s bathing suit be?