She made 3 sandwiches because 5-2 3/4 = 2 1/4.
2 1/4 as an improper fraction=(4*2)+1=9/4
9/4 / 3/4=3.
Answer:
C Jacob
Step-by-step explanation:
Alfredo: 157.5/18 = 8.75
Helene: 198/24 = 8.25
Jacob: 142.5/15 = 9.53
Leonna: 111/12 = 9.25
To find the mean or the avg you add up all the numbers you have and then divide by how many numbers you added together in this case 5
![6+ 17+22+28+37=110](https://tex.z-dn.net/?f=6%2B%2017%2B22%2B28%2B37%3D110)
![\frac{110}{5} =22](https://tex.z-dn.net/?f=%20%5Cfrac%7B110%7D%7B5%7D%20%3D22)
so the mean is 22, hope this helped you!
The best way to approach this problem is to start off by doing factor by grouping.