Answer:
$44
Step-by-step explanation:
Let the total amount of money be represented by Y
Amount spent on fresh food =
![\frac{4}{7} \times y](https://tex.z-dn.net/?f=%20%5Cfrac%7B4%7D%7B7%7D%20%20%5Ctimes%20y)
Remainder =
![y - \frac{4}{7}y = \frac{3}{7} y](https://tex.z-dn.net/?f=y%20-%20%20%5Cfrac%7B4%7D%7B7%7Dy%20%20%3D%20%20%5Cfrac%7B3%7D%7B7%7D%20y)
Amount spent on frozen foods = two-thirds of remainder = $22
![= \frac{2}{3} \times \frac{3}{7} y = \frac{2}{7} y](https://tex.z-dn.net/?f=%20%3D%20%20%5Cfrac%7B2%7D%7B3%7D%20%20%5Ctimes%20%20%5Cfrac%7B3%7D%7B7%7D%20y%20%3D%20%5Cfrac%7B2%7D%7B7%7D%20%20y)
![\frac{2}{7} y = 22 \\ y = 22 \times \frac{7}{2} \\ y = 77](https://tex.z-dn.net/?f=%5Cfrac%7B2%7D%7B7%7D%20%20y%20%3D%2022%20%5C%5C%20y%20%3D%2022%20%5Ctimes%20%20%5Cfrac%7B7%7D%7B2%7D%20%5C%5C%20y%20%3D%2077)
The total amount for grocery shopping is $77
Therefore, Brittany spent $44 on fresh foods
![= \frac{4}{7} \times 77 \\ = 4 \times 11 \\ = 44](https://tex.z-dn.net/?f=%20%3D%20%20%5Cfrac%7B4%7D%7B7%7D%20%20%5Ctimes%2077%20%5C%5C%20%20%3D%204%20%5Ctimes%2011%20%5C%5C%20%20%3D%2044)
Answer:
A
Step-by-step explanation:
99.7% encompasses about 3 standard deviations either side of the mean.
82 ±3*2 = (76, 88)
About 99.7% of the values lie between 76 and 88.