Answer: You could discuss the benefits of eating healthy food, since many elementary school students love to eat sugary and salty foods.
Explanation:
Immigrants can take online classes for English learning, or there are places such as in public schools that help them.
Answer:
MA of lever is 3 means that the applied force can lift 3 times heavier load using that machine.
VR of a lever is 4 means the effort has to move 4 times more distance than that of load distance to lift any load up to certain height.
efficiency of 60% means that 40% of energy is wested due to friction, heat energy.
