In 12 years she will be X+12
2 years ago she was X-2
All you have to do is figure out the bases of the figure and use the 12 and 13 in your problems and you should be able to get the right answer.
Answer:
Walnuts = $1.75 per pound
Choc chips = $3.75 per pound
Step-by-step explanation:
In photo, is working out.
To answer (a), we will need to find the Z value for 710 hours and 990 hours.


B) 68% of data lies between one standard deviation of the mean.
850 +70 = 920
850 - 70 = 780