Multiple Choice 20x-4y= -24

-x-5y= -40

A. Parallel
B. Perpendicular
C. Neither

Explain why.

okay wait before i answer, is this for your points on a graph?

98 points djdjsi zisksis sjsjsi sisksj sksjdj sksks sjsisj

the answer is: d) o, f, and kr.

atomic radius of bromine (br) is 114 pm.

atomic radius of oxygen (o) is 73 pm.

atomic radius of fluorine (f) is 72 pm.

atomic radius of krypron (kr) is 112 pm.

the atomic radius of a chemical element is a measure of the size of its atom.

the atomic radius varies with increasing atomic number, but usually increases because of increasing of number of electrons.

the atomic radius decreases across the periods because an increasing number of protons, because greater attraction between the protons and electrons.

i believe the answer is 323 ft

step-by-step explanation: