Answer:

Step-by-step explanation:

Answer:
Option C is correct.
Step-by-step explanation:
Given Equation:

To find: Solution of the Equation.
Consider,





b² = 0 ⇒ b = 0
b - 4 = 0 ⇒ b = 4
Therefore, Option C is correct.
Answer: 2 hours
Step-by-step explanation:
If they both walk 5 miles an hour combined, then it would take 2 hours for them to walk 10 miles.
hope this helps
Answer:
7
Step-by-step explanation:
94-87=7