The quotient of m and 11 division symbol and fraction

Which of the following of the following sets of side lengths could not form a triangle?

Add the two expressions 3.8b - 7 and 2.9b + 9 enter your answer in simplified form

John used linear combination to solve the system of equations shown. he did so by multiplying the first equation by -3 and the second equation by another number to eliminate the x-terms. what number did jonas multiply the second equation by? 4x-6y=23x+5y=11