Keith has a debt of $150 at the beginning of the summer he wants to have at least $200 in the account at the end of the summer if he plans to save $75 each week what is the minimum number of weeks he'll have to work in order to meet his goal?and show how to solve it and tell me a number line

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)