Answer:

Step-by-step explanation:
We can subtract a term from another if they have the same variable. Both
and
have the variable
, so we can subtract them.
When subtracting these terms, we subtract the coefficients and keep the variable.
So:

Hope this helped!
Answer:
D
Step-by-step explanation:
For example,
5×7-10>20
5(-3)-10<15
Answer: 250 miles
Step-by-step explanation:
I am not sure what grade level you are, but this is how it is done in college.
I hope it can give you an idea and be of some help.
First you have to convert 150 minutes to hours. Then you multiply your new hours to 100 miles.
150 minutes x <u> 1 hour </u> x<u> 100 miles </u>= 250 miles
60 mins. 1 hour
No, because the fraction is actually equal to a whole number. So it would be increased.