Which equation exemplifies the commutative property of 1: 5+(-5)=0 2: 3+5+8=8+8 3: 3+5+8=5+8+3 4: (3+5) +8=3+(5+8)

Solve the equation using the given values: x= -2.5; y= -7.51. 2xy + 2x²

Your friend uses c=50p to find the total cost, c, for the people, p, entering a local amusement park what is the unit rate and what does it represent in the context of the situation?

Afarmer has a large field that is x feet in length. he wants to fence in a rectangular section in the middle of the field , leaving a length of 100 feet of open field behind each end of the fenced rectangle.he also wants the width of the fenced-in space to be 100 feet less than its length. find the expressions to represent the length and width of the fenced section of the field