Item 19 the layer cake has both vanilla and chocolate frosting. what percent of the surface area of the cake (not including the bottom) is chocolate? round your answer to the nearest tenth of a percent.

If anyone has done the algebra 2 chaos theory portfolio would you be wiling to me? i kind of know what i'm doing i just don't know if i'm doing it right.

Two angles are complementary. the larger angle is 36 more than the smaller angle. what is the measure of the larger angle?

One number is 4 less than 3 times a second number. if 3 more than two times the first number is decreased by 2 times the second number, the result is 11. use the substitution method. what is the first number?