21r < 7
Divide by 21
r < 7/21
Answer:
2x+23
Step-by-step explanation:
Step-by-step explanation:
commutative property of multiplication
3 * 5 means 5 + 5 + 5 which equals 15.
5 * 3 means 3 + 3 + 3 + 3 + 3 which equals 15.
Answer:
13 u²
Step-by-step explanation:
Answer:
D. A = πr^2
Step-by-step explanation:
The formula of the area of a circle is <u>A = πr^2</u>.