A cube has a surface of 253 1/2 square inches. what is the area of one face of the cube in square inches? how do you know. I could really use help

Amerchant has coffee worth $60 a pound that she wishes to mix with 50 pounds of coffee worth $90 a pound to get a mixture that she will sell for $70 a pound. how many pounds of the & 60 coffee should be used?

What is the perimeter of a rectangular building that is 80 feet wide and 140 feet deep?

Me with geometry ! in this figure, bc is a perpendicular bisects of kj. dm is the angle bisects of bdj. what is the measure of bdm? •60° •90° •30° •45°