It's just telling you to multiple like 9×1=9 9×2=18 and so on.
Answer:
None of the above
Step-by-step explanation:
=4+2y+7
x+8=(7x)+
(2y)+(4+8)=7x+2y+12
Un número primo es un número entero mayor que 1, cuyo sólo dos factores de números enteros son 1 y en sí.
Answer:
14√2 feet
Step-by-step explanation:
The length of a diagonal of a square is 
where 
is the side length of the square. Therefore, 
.
Answer:
<u>Hanna is 8 years old.</u>
Step-by-step explanation:
Hanna = x
Tina = 4x
Sum = 40.
Hanna =?
Hanna + Tina = 40
4x + x = 40
5x = 40
x = 40/5
x = <u>8</u>.
Hanna is <u>8 years</u> old.
