Carmen runs a video to dvd transfer business. she charges her customers $20.40 for each video transferred. her expenses include $1,250.00 for the equipment and $2.45 for each blank dvd. which of these equations could carmen use to calculate her profit, p, for the transfer of n videos?

a. p = $17.95n - $1,250.00

b. p = $1,250.00 - $17.95n

c. p = $20.40n - $1,247.55

d. p = $22.85n + $1,250.00

Nthe opening scene of the movie raiders of the lost ark, indiana jones replaces a golden statue with a bag of sand. the platform on which the statue is placed is designed to detect the mass of the statue. if the bag of sand has a different mass than the statue, then a mechanism triggers and destruction ensues. the density of gold is about 20\text{ g/cm}^320 g/cm 3 20, space, g, slash, c, m, start superscript, 3, end superscript. the density of sand can be estimated at 2.5\text{ g/cm}^32.5 g/cm 3 2, point, 5, space, g, slash, c, m, start superscript, 3, end superscript. the gold statue can be modeled as a cylinder with height 25\text{ cm}25 cm25, space, c, m and radius 8\text{ cm}8 cm8, space, c, m. in terms of \piπpi, what is the mass of sand indiana jones needs to avoid triggering the mechanism?