Find the percent of change when the price of a radio changes from $40.00 to $44.00.

a. 12%
b. 10%
c. 36.4%
d. 40% 2. find the percent of change when the price of an oven changes from $450 to $396.

a. 15%
b. 14%
c. 13%
d. 12% 3. the top player’s scoring average changes from 20 points per game to 24 points per game.

a. 20% increase
b. 25% decrease
c. 16.7% increase
d. 4% increase 4. at the start of the football season, jorge weighed 150 pounds. at the end of the season, he weighed 138 pounds. what was the percent change in his weight?

a. 10%
b. 12%
c. 8.7%
d. 8% 5. sara raised her raw score on a math test from 40 to 60. what was the percent change in sara's score?

a. 10%
b. 20%
c. 40%
d. 50%

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?