What is the surface area of a sphere that
has a diameter of 12 inches?

Write a corresponding real world problem to represent 2x - 125=400

Acar travels at an average speed of 52 miles per hour. how long does it take to travel 299 miles

How many liters of peroxide should be added to 12 liters of an 8% peroxide solution so that the resulting solution contains 16% peroxide?   original added new amount of peroxide 0.96 liters x 0.96 + x amount of solution 12 liters x 12 + x 0.18 liter 1.14 liters 1.92 liters 2.10 liters