Acar purchased for $18,270 is expected to depreciate according to the formula y= -1260x + 18270 , where y is the value after x years. when will the car no longer have any value?

Amerchant has coffee worth $60 a pound that she wishes to mix with 50 pounds of coffee worth $90 a pound to get a mixture that she will sell for $70 a pound. how many pounds of the & 60 coffee should be used?

An airport in death valley is 60 feet below sea level, and an airplane is flying 2,000 feet above sea level. how many feet must the plane descend in order to land? a. 2060 b. 2000 feet c. 1940 feet d. 1880 feet e.1400 feet will mark as brainliest

Me complete this proof! prove that a quadrilateral is a square. me with the steps for this proof.