Answer:65ft
Step-by-step explanation:area of a square is =s^2
Therefore 4225=s^2
Find the square root of both sides
√4225=√s^2
Therefore s=65
Each side is 65ft
Answer: Jack can fill his feeder 12 times with 4 pounds of birdseed.
Step-by-step explanation:
You need to analize the information given in the exercise, You know that every time Jack fills the feeder, he put
pounds into it.
Then, in order to solve this exercise, let "x" represents the number of times that Jack can fill his feeder with 4 pounds of birdseed.
Keeping on mind the data provided in the exercise, you can set up de following proportion:

Finally, you must solve for "x" in order to find its value.
You get that this is:

Therefore, you can conclude that Jack can fill his feeder 12 times with 4 pounds of birdseed.
Answer:
500 lb
Step-by-step explanation:
You have to make a proportion:

77 lb is part of the whole weight ( which we don't know) so 77 will go on top
The problem tells us that 15.4% of the total weight is pecans so 15.4 will go over 100 (since % are out of 100)

Then you cross multiply giving you: 7700 = 15.4x
then you divide 15.4 to both sides to isolate x which will give you 500
First divided 140 by 100 to find out how much 1 percent is
140 ÷ 100 = 1.4
multiply 1.4 by 45 to find 45 %; 1.4 x 45 = 63
then add 63, which is 45%, to 140, which is 100%, and you get 203, which is 140 + 45%, or 145%
please mark brainliest if this helped you. I hope it did!