C it’s 366 cm that’s how you would know the rectangular board
The answer is <EKF and <HKI
Pi. I don't know what the square root is doing there because it has no number under it.
Answer:
13
Step-by-step explanation:
We can add 1 to both sides of the second equation and divide by 2 to get
x = (y-1)/2
We can then substitute x in the first equation to get
(y-1)/2 + 7 = 2y
Multiply by 2
y-1 + 14 = 2y
Subtract y and combine like terms
y = 13
On your calculator your write 8 on the y axis and 4 on the x axis
