My dad has 8 oak and maple boards from the lumber yard. each oak board is 9 centimeters thick. each maple board is 6 centimeters thick. when my dad stacks the boards, the stack is 60 centimeters thick. how many of each type of board does he have

_oak boards
_maple boards

Consider a cube that has sides of length l. now consider putting the largest sphere you can inside this cube without any point on the sphere lying outside of the cube. the volume ratio -volume of the sphere/ volume of the cube is 1. 5.2 × 10−1 2. 3.8 × 10−1 3. 1.9 4. 2.5 × 10−1 5. 3.8

The ph level of a blueberry is 3.1 what is the hydrogen-ion concentration [h+] for the blueberry

The pair of coordinates that do not represent the point( 5,150’) is a. (5,-210) b. (5,210) c. (-5,330) d. (-5,-30)