8+x ≥ 12
-8 -8
x ≥ 4
(i tried taking the picture)
Vehicle 1 = 18 miles per gallon
Vehicle 2 = 16.67 miles per gallon
Vehicle 1
Answer: 
Step-by-step explanation:
Given : Sample space : n= 559
Sample proportion : 

Significance level : 
Critical value : 
Confidence level for population proportion:-

Hence, 95% confidence interval for the percentage of all auto accidents that involve teenage drivers.= 
Finding the vertex of the parabola
<span>y = (x + 5)^2 + 8 the vertex is at (-5, 8)
its coefficient so the parabola turns upward so the range is [8 , inf]</span>