13y + 25 = 64
- 25 -25
13y = 39
13/13 39/13
y = 3
4y - 7
4(3) - 7
12 - 7
5
The answer is: 5
This question can be solved by:

Cross multiply to get: 8.3x = 3,560,000
To let the x stand along (since you are finding the x value), divide 8.3 to both sides of the equal sign.

Simplify to get the answer.
Put in 1 for x and which problem gives you 7
the answer is y=7x
Answer:
42.57 inch
Step-by-step explanation:
Calculate area of square and area of 4 triangles and sum them up to get.