7*5*4 is the volume of the package, =140
140/0.5=280.
I think it is 15 or 27 so that is my answer
D. The number of items (items being numbers)
Z = ( 135 - μ ) / σ = -1
z = ( 165 - μ ) / σ = 1
P (x < 135) = P (z < -1) = 0.1587
P (165 < x) = P (1 < z) = 0.1587
.187 * 1000 = 187 more than 165
<span>.187 * 1000 = 187 less than 135</span>
A) A = 40m + 300
b) 820 = x12 + 100
x = 60
B = 60m + 109