It's a line in form y = mx.
Two points:
(0, 0) and (1, 4)
The formula of a slope:
Substitute:
Answer: 
Wouldnt that be 2+5 ?? if x is 2 it’s simple, just add them and you get 7.
Answer:
23.68
Step-by-step explanation:
74% = 74/100
· 
= 23.68
Answer: in order to qualify, the time must be at least 15.93 minutes
Step-by-step explanation:
Let x be a random variable representing the average response times of fire departments to fire calls. Since it follows a normal distribution, we will determine the z score by applying the formula,
z = (x - µ)/σ
Where
x = sample mean
µ = population mean
σ = population standard deviation
From the information given,
µ = 12.8 minutes
σ = 3.7 minutes
in order to qualify for the special safety award, the probability value would be to the right of the z score corresponding to 80%
The z score corresponding to 80% on the normal distribution table is 0.845
Therefore,
0.845 = (x - 12.8)/3.7
0.845 × 3.7 = x - 12.8
3.13 = x - 12.8
x = 12.8 + 3.13 = 15.93
