Answer: Assuming you mean that the original cost was doubled and now equals $60, the camera costed $30. Assuming the camera's price has been doubled from $60, it is $120. The wording is a bit unclear, so I'm giving you both answers.
Step-by-step explanation: To find half of the price of $60, simply divide it by 2, which gives you $30.
Start at 4.
So far you have: 4
Now you go 7 units left. Going left means a subtraction. Going 7 units left means subtracting 7.
So far you have: 4 - 7
The result is -3.
The subtraction is:
4 - 7 = -3
Answer:
25 × 60 (1 minute) × 60 (1 hour) = 90,000 meters/hour
90,000 converted into miles is 55.923
