The u. s weather bureau has a station on mauna lou in hawaii that has measured carbon dioxide levels since 1959 . at that time there were 313 parts of carbon dioxide in the atmosphere. in 2005 the figure was 391 parts per million. find the percent increase in carbon dioxide levels.

round your answer to the nearest tenth of a percent

Side xy of triangle xyz is extended to point w, creating a linear pair with ∠wyz and ∠xyz. measure of an exterior angle what is the value of x? 64 80 100 180

Graph the line with the given slope m and y-intercept b. m=-3,b=1

Brittany has designed four different birdcages, each with the same volume: a square pyramid, a cylinder, a cone, and a sphere. the zoo wants to use one of brittany’s designs but plans to change the volume of the cage. find the design change that would result in the birdcage with the greatest volume. a.) increase the area of the base of the square pyramid by a factor of ten. b.) increase the height of the cylinder by a factor of ten. c.) increase the radius of the cone by a factor of ten. d.) increase the radius of a sphere by a factor of ten.