Which of the given expressions are equivalent? select all that apply.3z+2z and 5z, {8x-8x}-y and 0,9.1 +4.5a-2.5a and 11.1a,-7y[3]-3and0, y-6[3]and y-18

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.

The weight of an object in the water is 7% of its weight out of the water. what is the weight of a 652g object in the water?

What is the best estimate of the length of a football