To find y, divide the first equation by 2.
y = 4
To find x, use that value for y in the second equation. Add 4, then divide by 2.
15·4 = 2x -4
60 +4 = 2x
64/2 = x = 32
The solution is (x, y) = (32, 4).
Answer: The value of test statistic is -0.052.
Step-by-step explanation:
Since we have given that
n = 677
and

Claim that Most of the adults erase all of their personal details online.
p = 0.5
q = 1-0.5 = 0.5
So, the test statistic would be

Answer:
6.5 yards
Step-by-step explanation:
1 yard = 36 inches
234/36 = 6.5