A pure substance that is made of only one kind of atom is called an element.
An element is a pure substance, which means it is made up of only ONE kind of atom.
2(-11)-19
-22-19
-41
D is the answer
Answer:
Given:
Area of circle = 616 cm²
To Find:
Radius of circle
Step-by-step explanation:

Answer:
area = 1/2× base×height
<u>1</u>×5.8×2.4
2
<u>1</u><u>3</u><u>.</u><u>9</u><u>2</u>
2
=6.96cm²
<span>2r/5+7r/15=
LCM=15
(15\5=3*2r=6r)
15\15=1*7r=7r
answer=6r+7r\15
answer=13r\15</span>