When you use the lcd to add or subtract rational expressions, will the answer always be in simplest form if you use the lcd? explain.

Asquare parking lot has 6,400 square meters what is the length in meters

Apublic library wants to place 4 magazines and 9 books on each display shelf. the expression 4s+9s represents the total number of items that will be displayed on s shelves. simplify the expression

Write the sine and cosine values of a, b, respectively, in the figure for (1) and (2) + explanation.