The greatest common factor of 21, 35, and 49 is: 7
Since 21 is the lowest number we are solving up to, so no other factors can be given after that.
Factors of 21: 1, 3, 7, 21
Factors of 35: 1, 5, 7
Factors of 49, 1, 7
The common factors between the three numbers are 1 and 7, but we are looking for the greatest common factor, not the common ones. It either has to be 1 or 7, and 7 is obviously the highest, making it the greatest common factor.
Answer:
Each t-shirt costs about $9.46
Step-by-step explanation:
We can represent as the function
![f(x)=28x+30](https://tex.z-dn.net/?f=f%28x%29%3D28x%2B30)
![295=28x+30](https://tex.z-dn.net/?f=295%3D28x%2B30)
![265=28x](https://tex.z-dn.net/?f=265%3D28x)
![x=9.46](https://tex.z-dn.net/?f=x%3D9.46)
What number do you want to be tally marked???