Answer:
b=-5
Step-by-step explanation:
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A suitable probability app shows the 1st percentile to be at about 11040 pages.
_____
The app shown has an error in the first decimal digit. The number is closer to 11040.82301. We expect the manufacturer would round to the nearest 10 or 50 or 100 in advertising.
Answer:

Step-by-step explanation:
The given formula is:
c=5d+4w/2w
We need to find d.
Multiply 2w on both sides, we get
c x 2w= 5d+4w/2w x 2w
2cw=5d+4w
Adding -4w on both sides, we get
2cw-4w=5d+4w-4w.
2cw-4w=5d
2w(c-2)=5d
Dividing by 5, we get
2w(c-2)/5 = 5d/5
2w(c-2)/5 = d
Hence the required formula with subject d is

Answer:
The cost for Zach's lunch is 12, and for Brain's lunch it cost 8.
Step-by-step explanation:
Since, I am sorry, you can answer from here in out. ;)
Let a be the arc length...
a/(2πr)=90/360
a/(2πr)=1/4
a=πr/2 and r=7.5 so
a=3.75π cm
a≈11.78 cm (to the nearest one hundredth of a cm)