Answer:
Step-by-step explanation:
let width=x
length=3x
area=x*3x=3x^2
so 3x^2=10

Answer:

Step-by-step explanation:







45. Explanation: I honestly don’t know
I think it is
1,000 <span>quintillion</span>
- 3 + u = - 20
u = - 20 + 3
u = -17
hope this helps!.