Which expression is equivalent to 29/63 ?

What properties allow transformation to be used as a problem solving tool

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

For the right triangle shown, the lengths of two sides are given. find the third side. leave your answer in simplified, radical form.