I HAVE 2 QUESTIONS GIVING 71 POINTS JUST HELP MEH PLZ

What is the equation for quadratic parent function that has been vertically compressed by a factor of 2/3 and been reflected across the x-axis?

Describe how changing the parameter 'a' affects the graph of the quadratic function.

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.

47.28 or 47.2857143

step-by-step explanation:

you just divide 331 by 7 and you get that answer. ( i think so tho)