Mr. Tankard's minivan has a 21 gallon tank. He can travel 354 miles on tank of gas. How many miles per gallon does the minivan get?How many tanks does of gas will he need to travel 870 miles?

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