Answer:

Step-by-step explanation:
we know that
the formula to calculate the distance between two points is equal to

we have
(4,2) and (7,8)
substitute the values in the formula




Answer: 18 1/2 inches
Step-by-step explanation:
Option b is the right answer
Answer:
The chemical reaction is due to chemical change in the chemicals within the light stick so it shows off color.
Step-by-step explanation:
The chemicals in the light stick interact with each other. This cause them to come together and give off a color of light.
Answer:
300
Step-by-step explanation: