b. Betty worked at a golf course during the summer after eighth grade. After working for two weeks, she added her earnings to the gifts she got for graduation and found she had $570. After four more weeks of work, she had a total of $870. What’s the y intercept and slope equation?

Sandy is upgrading her internet service. fast internet charges $20 for installation and $52.45 per month. quick internet has free installation but charges $57.45 per month. part 1 out of 2 complete the equation that can be used to find the number of months after which the internet service would cost the same. use the variable x to represent the number of months of internet service purchased.