Me branniest any answer without proof will be reported

Choice B is correct. The two lines cross at (2,-3)

As algebraic proof, you can plug in (x,y) = (2,-3) into each equation and verify like so

y = 2x-7

-3 = 2(2) - 7 ... replace x with 2, y with -3

-3 = 4 - 7

-3 = -3 true equation

Repeat for the second equation

y = -x-1

-3 = -2-1 replace x with 2, y with -3

-3 = -3 ... true equation

both equations are true when (x,y) = (2,-3) so the solution to the system has been confirmed.

45

step-by-step explanation:

to find a percentage, add a decimal in front and multiply it by the other number.

.25 times 180= 45