a new apartement complex advertises that it will give away three mopeds by drawing from the first 50 students that sign a lease four friends are among the first 50 to sign what is the probability that at least one of them will win a moped

Solve for x and y: 217x + 131y = 913; 131x + 217y = 827

The following hormone had their receptors in the cell membrane except a-insulin b-tsh c-gh d- cortisol

Nour and rana are shopping for a christmas tree. they are deciding between 2 22 different types of trees (real and fake) and 4 44 colors for the ornaments (white, silver, gold, and purple). they each created a display to represent the sample space of randomly picking a type of tree and a color for the ornaments. whose display correctly represents the sample space?