On a test that has a normal distribution, a score of 43 falls one standard deviation above the mean, and a score of 25 falls two standard deviations below the mean. Determine the mean of this test.

the correct answer is you spend $55.78 more in a brand store that buy ing in a normal store.

step-by-step explanation:

brand = spend   $ 135.85 total

store = spend $80.07 total

i think the answer is b.

step-by-step explanation:

not 100% sure though.

really really sorry if i'm

-12 -5(x + 4) = 3x

-12 - 5x - 20 = 3x

-12 - 20 - 5x = 3x

-32 - 5x = 3x

    + 5x   + 5x

-32 = 8x

8         8

- 4= x

(5x-1)^2= (5x)^2-2(5x)×1+(1)^2=25x^2-10x+1