Determine whether each expression is meaningful as a real number yes or no? -√9

Astore has apples on sale for three dollars or 2 pounds how many pounds of apples can you buy for nine dollars if an apple is approximately 5 ounces how many apples can you buy for nine dollars

Which shows one way to determine the factors of 4x3 + x2 – 8x – 2 by grouping?

Proving the parallelogram diagonal theoremgiven abcd is a parralelogam, diagnals ac and bd intersect at eprove ae is conruent to ce and be is congruent to de