What is the square root of 13 squared

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.

Evaluate the expression for the given value of the variable 7a - 4a for a =8

The area of square garden is 300m squared. how long is the diagonal?