Which expressions are equivalent to5(1/3x+7)-3(1/2x-4)

What is the area of the triangle 10 13 12

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

Acompany made a profit of 75000 over a period of 6 years on an initial investment of 15000 what is the annual roi