Iknow it is simple, but my mind is overloaded right now. would be appreciated

OK.  Don't blow a fuse.

Remember:  The interior angles of every triangle always add up to 180 degrees.

So ' x ' is whatever you need to add to (60+70) to reach 180.

     60 + 70 = 130 .

Make up the difference between 130 and 180, and you'll have ' x '.

The correct solution is "". A further explanation is provided below.

Step-by-step explanation:

The above query seems to be incomplete. Below is the attachment of the complete question is attached.

Given that,

For SUV,

= 11 ​(mpg)

For hybrid ghost,

= 65 mpg

Now,

Option 1:

After tuning, the mileage of SUV will be:

=

=

Average mileage will be:

=

=

=

Option 2:

Given:

Mileage of new hybrid,

= 80 mpg

Now,

Average mileage will be:

=

=

=

Thus we can say that the second option gives better mpg as compared to the first one.

i.e.,

⇒