Answer:
The probability that a randomly chosen part has diameter of 3.5 inches or more is 0.9525
Step-by-step explanation:

Standard deviation = 
We are supposed to determine the probability that a randomly chosen part has diameter of 3.5 inches or more

Refer the z table for p value

Hence the probability that a randomly chosen part has diameter of 3.5 inches or more is 0.9525
4 5/8 = 37/8
2 7/8= 23/8
37/8-23/8=14/8=1 6/8=1 3/4
X2, or 2X or X times 2, or X•2.
It would be equivalent to x=8
I believe the answer is 5. I multiplied 5 to -4 and that’s -20 and I’m guessing since slope-intercept form is y=Mx+b I’m thinking b=4 and the slope being 5 matches the output. -16=5(-4)+4