Compounds with high melting points have (1 point) covalent bonds metallic bonds ionic bonds no chemical bonds

Melting points are determined by how much the molecules in the compound interact with the other molecules in the compound. Those that have many interactions with the other molecules have higher melting points.  

Of those listed, Ionic bonds have the most rigid interactions with other molecules so have the higher melting points.

d is the correct answer

step-by-step explanation:

x= 8 because 3x = 3 * 8, and 3*8 = 24