3 A red car travels 400 m in 20 s. A blue car travels 660 m in 30 s. Which car has the greater average speed?

Jackie purchased 3 bottles of water and 2 cups of coffee for a family for $7.35. brian bought 4 bottles of water and 1 cup of coffee for his family for $7.15. how much does each bottle of water cost? how much does each cup of coffee cost? i need this done

Write an expression that has three terms and simplifies to 4x - 7. identify the coefficient(s) and constant(s) in your expression

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)