How much will 30 pencils cost if 10 pencils cost $0.59 and there is a $0.10 discount if your purchase 3 dozen?

we know 10 pencils cost 0.59, that means that 1 pencil alone costs 0.59 ÷ 10 = 0.059, close to 6 pennies really for each one.

well, the discount only occurs if we purchase 3 dozens, namely 36 pencils, however we're only buying 30, so no discount, all pencils are at regular price, namely 30 * 0.059 = 1.77.

nothjing

step-by-step explanation:

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.