Answer:
25º celsius
Step-by-step explanation:
The formula for converting fahrenheit to celsius is: Deduct 32, then multiply by 5, then divide by 9
77 - 32 = 45 x 5 = 225/9 = 25º
The answer is 11 degrees if you want to know why this is the answer reply to my comment
A) 42,000m divided by 2 1/3 = 18,000m divide by 1000m to get km = 18km/hr
B) 18,000m divided by 60 to get minutes = 300m divide by 60 to get seconds = 5m/sec.
For this case we have the following quadratic functions:
Revenue: 
Cost: 
Then, we observe that the profit is given by the following mathematical relationship:

Substituting values we have:

Making the corresponding calculations we have:

Answer:
An expression that represents the profit is:
