Atractor requires 4 gallons of diesel fuel to plow for 90 minutes. how many gallons of fuel would be required to plow for 8 hours

Ineed if you could explain and give me the answer you! this needs done

The radius of the earth is two times the radius of the moon. what fraction of the volume of the earth is the volume of the moon?

Afamily has five members. a mom, a dad, two sisters, & a brother. the family lines up single file. what is the probabillity that the mom is at the front of the line