Ok, find the difference.
(6x3 + 18x2) - 3x2 =
a. 21x2b. 21x3c. 3x3 + 15x2d. 6x3 + 15x2

Each of the walls of a room with square dimensions has been built with two pieces of sheetrock, a smaller one and a larger one. the length of all the smaller ones is the same and is stored in the variable small. similarly, the length of all the larger ones is the same and is stored in the variable large. write a single expression whose value is the total area of this room. do not use any method invocations.

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angle measure.

Given: and prove: what is the missing reason in the proof? given transitive property alternate interior angles theorem converse alternate interior angles theorem