You have to set it up as two problems then combined like terms then add them together
Answer:
Step-by-step explanation:
1 mile contains 5280 feet
x mile contains 792 feet Cross Multiply
5280 x = 792 Divide by 5280
x = 792 / 5280
x = 0.15 miles
1 hour = 3600 seconds
Distance travelled in 12 sec = 0.15 miles
3600 sec = x Cross Multiply
12x = 3600 * 0.15 Combine
12x = 540 Divide both sides by 12
12x/12 = 540/12
x = 45 miles / hour
Answer:


Step-by-step explanation:
Given

Require
Solving (a):

Subtract 24 from both sides


Divide both sides by 2



Solving (b):
Substitute 330 for P un the expression in (1)

Evaluate the bracket


<em>Question c; seem irrelevant</em>