There are 10200 people. of those people two-thirds are adults. how many are not adults

Gretchen is setting up for a banquet. she has 300 chairs and needs to distribute them evenly among t tables. how many chairs should she put at each table? write your answer as an expression.

How many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.

Christina can paint 420 square feet in 105 minutes. which unit rate describes the scenario?