The equation y=1.07x+3.91 models the number of pieces of junk mail a person receives in a week, where x represents the number of credit cards he or she has. what does the y-intercept represent in the context of the situation? a. a person with 1 credit card can expect about 4 pieces of junk mail in a week b. a person with no credit cards can expect about 1 piece of junk mail in a week c. a person with no credit cards can expect about 4 pieces of junk mail in a week d. a person with 1 credit card can expect about 1 piece of junk mail in a week

i believe the correct answer is b.

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.