Brian makes a cleaning solution using a ratio of 4 cups of water to 1 cup of vinegar. Which equation could be used to find c, the number of cups of vinegar that Brian should use with 12 cups of water?

Use the quadratic formula to solve 5x=6x^2-3,what are the values of x?

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.

Aschool puts on a play. the play costs $1,200 in expenses. the students charge $4.00 for tickets. there will be one performance of the play in an auditorium that seats 500 people. what is the domain of the function that shows the profit as a function of the number of tickets sold?