Estimate how many women must be randomly selected to estimate the mean weight for women in one age group. We want 90% confidence that the sample is within 3.7 lb of the population mean, and the population standard deviation is known to be 28 lb

b. would be the answer : )

step-by-step explanation:

step 1: add -16x to both sides.

16x−4y+−16x=64+−16x  

−4y=−16x+64

step 2: divide both sides by -4.

−4y /-4 = -16x + 64/-4

answer:   y=4x−16

hope i'm right

step-by-step explanation:

left be aligning the decimal points is required to not required see the number of digits to the right