Answer:
After 7 months will both packages cost the same.
Explanation:
Let the month after which both the packages will cost the same be x.
Cost of data package-1 for x months = $28+$8x
Cost of data package-2 for x months =$12x
Cost of data package-1 for x months = Cost of data package-2 for x months
![\$28+\$8x=\$12x](https://img.qammunity.org/2020/formulas/mathematics/high-school/4ju88sbpq24eg8w5o3iqczfoszx8t0cdh0.png)
![\$28=\$12x-\$8x](https://img.qammunity.org/2020/formulas/mathematics/high-school/9ewhfuiafbf5jo6ipwqfuinm08thgn5k9x.png)
![x=(28)/(4)=7](https://img.qammunity.org/2020/formulas/mathematics/high-school/q47bezrnjsm8ufrn4zsylpk4m3nv4dc4an.png)
After 7 months will both packages cost the same.