A girl scout troop uses 14 flashlight batteries on a three-night camping trip. If they are planning a seven-night trip, what is the minimum number of batteries they should bring?
***round to nearest whole battery ***

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angle measure.

What are the solutions of the system? solve by graphing. y = -x^2 - 3x + 2 y = -2x + 2

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?