What if someone says there are 49 days until july 4. there are 7 days in a week. in how many weeks will it be until july 4.?

Which of the following parabolas opens up?

Need solving this 2nd limit problem.

Fred and gene are hang gliding. fred is 700 feet above the ground and descending at 15 ft/s. gene is decending as shown in the table. interpret the rates of change and initial values of the linear functions in terms of the situations they model. show all work. freds equation is f(x)=-15x+700. ( genes is the table attached)