At the beginning of the quarter , nahla deposited $ 100 into her lunch account. if nahla spends avarage of $18 per week on lunches , then m=100-18w represents the amount of money nahla has left in her lunch accounts m after w weeks of school use the graph to estimate to the nearest tenth the number of weeks that nahla can purchase school luches with the money she deposited at the beginning of the quarter

Find the number of positive three-digit even integers whose digits are among 9, 8, 7,5, 3, and 1.

On a string instrument, the length of a string varies inversely as the frequency of its vibrations. an 11-inch string has a frequency of 400 cylces per second. find the frequency of a 10-icnch string.

Bella want to know what the students at her school think of her show. which is the best group to survey to find this information a. go to the mall and ask all of the students she recognizes from school b. ask her viewers to call in durning an episode of the show c. get a list of students at her school from the office and use a random number generator to pick 30 of them d. get a list of students at her school from the office and pick the first 30 students on the list