Answer: 0.6 is the answer
The student went wrong in step three. the solutions should have been -3 and 5
$9.00 per hour. take 45 and divide by 5 you get 9.
Marco needs to save a minimum of $420 more to buy a smartphone.
<u>Explanation:</u>
Cost of a smartphone = $495
Savings = $75
Least amount of money, m that needs to be saved = ?
Additional savings, m = Total - initial savings
m = $495 - $75
m = $420
The inequality equation would be 75 + m ≥ 495
Therefore, Marco needs to save a minimum of $420 more to buy a smartphone.