Which situation can be represented by the equation below? 15 + x = 63.75 answer 1. David orders 15 bags of grass seed that weigh a total of 63.75 pounds. how much dose each bag weigh.
answer 2. David stacks 15 pieces of wood that are each 63.75 millimeters thick. what is the total thickness of the stack of wood?
answer 3. David works for 63.75 hours in july. in august, he works 15 more hours than he works in july. how many hours dose david work in august?
answer 4. David spends $63.75 at the bookstore. he uses a $15 gift card and pays the rest in cash. how much dose he pay in cash.

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?