If 1 mile is equal to 1.61 kilometers, how many kilometers are there in 50 miles?

Afactory adds 3 red drops and 2 blue drops of coloring to white paint to make each pint of purple paint. the factory will make 50 gallons of the purple paint.how many drops of red and blue coloring will the factory need in the 50 gallon batch of purple paint.

Which inequality is equivalent to -3x < -12? x < 4 , x < -4 , x > 4, x > -4

How many kilograms of a 5% salt solution and how many kilograms of a 15% salt solution must be mixed together to make 45kg of an 8% salt solution?