The figure on the left is a portion of a standard multiplication table that contains the products of all pairs of positive integers. The figure on the right is a contiguous 2-by-2 section of the standard multiplication table, with some digits replaced with question marks. What is the sum of the four numbers in this section?

What value of x is in the solution set of 4x – 12 s 16 + 8x?

Sundar used linear combination to solve the system of equations shown. he did so by multiplying the first equation by 5 and the second equation by another number to eliminate the y-terms. what number did sundar multiply the second equation by? 2x+9y=41 3x+5y=36

Ascientist wants to use a model to present the results of his detailed scientific investigation. why would a model be useful? a )because the model makes the concepts easier to understand b) because the model is easy to put together and to use c) because the model prevents other scientists from asking questions d) because the model requires the audience to pay full attention to it i don't know what to choose because between a and d a is much more likely than d because it only wants to get the attention of the audience. i'm confuse.