On an exam you get two points for each question answered correctly, zero points for each question left blank, and lose one-half point for
each question answered incorrectly. What is your total score on the
exam if you answer 13 questions correctly, leave 7 questions blank
and answer 5 questions incorrectly?

is only a line? i think so

step-by-step explanation:

use pothagarean therom

a^2+b^2=c^2 so first ac

acm is a right triangle because c= 90°

and am (the hypotenuse or c) =16+9 =25

but there is not enough info we need another angle or side length

other answer is correct. i had used the radius of the radius somehow. a website:

- (2, -7)

- lines r and s and lines t and u must be parallel