A normal distribution of data has a mean of 15 and a standard deviation of 4. How many standard deviations from the mean is 25?
0.16
O 0.4
O 2.5
O 6.25

n

step-by-step explanation:

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step-by-step explanation:

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let y equal to

the total fare and x is the mile of taxi ride. so the equation is

y = 0.55x + 1.75

since susie has

$10 to spend for a taxi cab, so he can have

10 = 0.55x +

1.75

x = 15 miles of

taxi ride

so the system of

inequality is

10 < 0.55x +

1.75

x > 2