Which of the following gives an example of a set that is closed under multiplication?

the product of an even number and an even number

the product of a prime number and a prime number.

the product of a negative number and a negative number

the product of a perfect cube and a perfect cube

On a coordinate grid, point p is at (4, 3) and point r is at (−2, −5). points q and s are a reflection of both points across the x-axis. what are the coordinates of q and s? q(−4, 3), s(2, −5) q(4, −3), s(−2, 5) q(−4, −3), s(2, 5) q(−4, 3), s(−2, 5) ; -; i can't figure it out, if someone can me with the answer,that would be nice

Which of the following shows the length of the third side, in inches, of the triangle below

What number is 7 units left of -15?