:
Marco wants to put a decorative border around the edge of his circular herb garden. He finds that the distance from the garden's edge to its center is 30 inches. The store only sells the material he needs in 1-foot increments. How many feet of material should Marco buy to completely surround the garden?

16 feet

Step-by-step explanation:

2 x Pi(3.14159) x 2.5

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.

final total: 63

step-by-step explanation:

60 times sales tax

60 times 0.05

3

60 + 3

63