Answer:
acceleration 
Step-by-step explanation:
The acceleration is the change in velocity per unit of time.
Therefore to have this rate in appropriate units that can combine, we re-write the change from 0 to 70 km/h in meters per second using:

so in this case the acceleration becomes:

90.42857143 or
90.4 to nearest decimal
Use photo math for that 21
Answer:
Multiply each expression by the same number.
Step-by-step explanation: