Rotate the triangle R(3,1), 5(1,3), 7(4,5) 180° about the origin.

arrange the equations with like terms in columns.

analyze the coefficients of x or y.

add the equations and solve for the remaining variable.

substitute the value into either equation and solve.

check the solution.

step-by-step explanation:

your answer is the frist one

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i get you, what you should do is think of the positive things that would come out of it. it will make yours parents proud and raise your grade. you should always try and if you can't focus tell the teacher.

tip $2.90

total $17.40