How many significant figures does the value 0.080 have? 1 2 3 4

The velocity of car is 80.0 miles per hour. what is the velocity of car in meters per second? (1 km -0.621 miles) m/s

Which features on mars point to the possibility of liquid water on the planet? impact craters with sharp rims volcanic cones with craters gullies and stream-like channels mountain ranges with faults

Describe how the motion of a spring being pushed forward and backward is similar to the motion of air particles in a sound wave.