For this case, we have the following expression:

We simplify the expression:
If we add similar terms, taking into account that different signs are subtracted and the sign of the greater one is placed, we have that 
So, we have to:

Answer:
-3x + x + 5 = -2x + 5
Assuming that the fee is purely based on duration, the equation would look like this:
c= a*p
where c= cost, a= rates per hour, p= hours of parking
Alexandra pays 7$ for 3 hours parking. So, a would be:
c= a*p
7$= a * 3 hr
a= 7$/3hr
Then the final equation would be:
c= (7/3) *p
Answer:
50 miles per hour!
Step-by-step explanation:
If 2 hours equal 100 miles, then 1 hour will be 50!
Hope this helped!
Answer:
Step-by-step explanation:
<u>f(x) is positive in the interval:</u>
<u>g(x) is positive in the interval:</u>
<u>The intersection of the above intervals is:</u>
Correct choice is A
There will only be one solution because the two same variables are being used in each expression. For instance f and m.