At a post office, the weight of the mail at 10:00 a. m. was 80 pounds. Two hours later, the weight of the mail had increased by 30%. Find the weight of the mail at noon.

What is the range for 31,39,29,34,37,24,36,33,34,28

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36

Louis wants to carpet the rectangular floor of his basement.the basement has an area of 864 square feet.the width of the basement is 2/3 it's length. what is the length of louis's basement