What is the most reasonable estimate of the correlation coefficient between x and y

Which expression is equivalent to 2x^2+2x-4/2x^2-4x+2

What are the solutions of the system? solve by graphing. y = x^2 + 3x + 2 y = 2x + 2

Acampus club held a bake sale as a fund raiser, selling coffee, muffins, and bacon and eggs sandwiches. the club members charged $1 for a cup of coffee, 3$ for a muffin , and $4 for a back. and egg sandwich. they sold a total of 55 items , easing $119. of the club members sold 5 more muffins than cups of coffee, how many bacon and egg sandwiches he’s did they sell