The cargo area of the moving truck shown will be completely filled by 45 identical cube-shaped boxes. What will be the surface area of one layer of boxes on the floor of the truck bed?

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 x and y intercepts for y=x+7

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.