The formula of an area of a circle:

r - a radius
We have r = 14m. Substitute:

If you want an approximate area, you can accept 
Then:

We know that 1 gram = 10 decigrams
That means that 650 * 10= 6500
Hope this helps!
Answer:
7.5 pounds
Step-by-step explanation:
multiply by 3.
3x+3y=30
2x+3y=22.5.
x=7.5.
7.5+2.5=10.
7.5 pounds of walnuts, 2.5 pounds of raisins.
Hope this helps :D
Answer:
the first one is $6.66
Step-by-step explanation:
the 3 items added up is 74 cents, then 74 is multiplyed by 9.