Miranda's Maid Service charges $280 to clean 8 offices. Mandy's Maid service charges $248.50 to clean 7 offices. Which service charges more per office?

Ihave trouble finding the nth term of a linear sequence

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

Ineed no it anyone can see this