Which of the following has no solution?
a. {x | x ≤ 1} and {x | x ≥ 1}
b. {x | x < 1} and {x | x > 1}
c. {x | x ≤ 1} or {x | x ≥ 1}

Ineed to know the answer right now! !

Anew landowner is interested in constructing a fence around the perimeter of her property. her property is 1,080√30 feet wide and 500√20 feet long. what is the perimeter of the property? (recall that the perimeter is the sum of each side of a shape or boundary). a 1,580√40 feet b. 5,320√5 feet c. 3,160√20 feet d. 10,640√5 feet

Select quivalent or not equivalent to indicate whether the expression above is equivalent or not equivalent to the values or expressions in the last column.