The graph shows the amount of protein contained in a certain brand of peanut butter. Click on the statements that are true about the graph. A: Point (6,30) means there are 30 grams of protein in 6 tablespoons of peanut butter.

B: The line passes through the origin, therefor it models a proportion.

C: Point A is at (8,40) which is the origin.

D: The unit rate for the amount of protein grams per tablespoon of peanut butter is 30 grams of protein per tablespoon of peanut butter.

The edge of a cube was found to be 30 cm with a possible error in measurement of 0.4 cm. use differentials to estimate the maximum possible error, relative error, and percentage error in computing the volume of the cube and the surface area of the cube. (round your answers to four decimal places.) (a) the volume of the cube maximum possible error cm3 relative error percentage error % (b) the surface area of the cube maximum possible error cm2 relative error percentage error %