When 8x^2+26x+k is divided by x+3, the remainder is 4

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

If w = 6 units, x = 3 units, and y = 5 units, what is the surface area of the figure? 168 units2 240 units2 144 units2 96 units2

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?