the equation y=0.79x + 10 can be used to determine the cost (y) of downloading a number of songs (x) from the online music store, B & C. The graph represents the cost at JR's Music, an online competitor. If you bought 8 songs, which company would charge more

Aheated piece of metal cools according to the function c(x) = (.5)x ? 7, where x is measured in hours. a device is added that aids in cooling according to the function h(x) = ? x ? 2. what will be the temperature of the metal after two hours?

Solve 13 + w/7= -18 (w/7 is a fraction)

Jack has a rectangular piece of land, the area of which is represented by a1 = 9.5l. his brother has a different rectangular piece of land, the area of which is represented by a2 = l(14 − l). let a represent the area in square meters and l represent the length in meters of the pieces of land. the two equations plotted on a graph meet at a point as shown in the image