Which algebraic expression would not have the same meaning if the number and the variable were reversed? n + 8 m − 5 k × 8 4 + x

During which phase does earth see more than half of the moon's surface? 1)first quarter2)third quarter3)waxing gibbous4)waning crescent

Which best explains how a heat pump can heat a room? cold air from the house is moved through pipes, where it absorbs thermal energy. warm air from outside is pushed into the house to replace the cold air. combustion warms the air when chemical energy is transferred to thermal energy. fuel is used to move a piston, which pushes warm air into the house.

Modern sea star larvae resemble some primitive vertebrate larvae. this similarity may suggest that primitive vertebrates