5. The Doughnut Deli charges $3.50 per dozen for the first three diesen purchased by a customer, but then charges only $2.80 per done for any additional doughnuts purchased. The Thrifty
Bake Shop charges $3.10 per dozen regardless of the number of dozens purchased. When is a more
economical to buy from the Doughnut Deli?

What is the value of the expression below? 148+(-6)| + |– 35= 7|

If a is a nonzero real number then the reciprocal of a is

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?