I'm pretty sure it's:
A right rectangular prism with length 15 inches, width of 8 inches, and height of 6 inches.
A cross section parallel to the base is a rectangle measuring 15 inches by 8 inches
A cross section perpendicular to the base through the midpoints of the 8-inch sides is a rectangle measuring 6 inches by 15 inches
Just visualize the rectangle
Variables are any letter that holds the value of a number. In most cases it is x or y. It can sometimes be sound next to another number. In this case you can find x next to 9. The variable here is x.
200000+1000+8000+300+70+5
( x,y ) -> y is second number
so y=9.
The lowest common multiple of 4 and 10 is 20.
