A pair of listening posts picks up a sound, with one listening post recording the sound after the other. The equation StartFraction x squared Over 1,890,625 EndFraction minus StartFraction y squared Over 7,109,375 EndFraction = 1 represents possible locations of the sound source with units in feet. How far apart are the listening posts? 1,375 ft
2,750 ft
3,000 ft
6,000 ft

Pick the description of a geometric object that best matches the real world object box for a deck of card

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

The jewelry store is having a sale. necklaces that were regularly priced at $23.50 are on sale for $18.80. what is the percentage of decrease in the price of necklaces?