Ay + b = cx for y what is it

Look at attachment. has all info needed. need

Asystem of equations has 1 solution. if 4x-y=5 is one of the equations , which could be the other equation ?

Merrida uses a pattern in the multiplication table below to find ratios that are equivalent to 7: 9. if merrida multiplies the first term, 7, by a factor of 6, what should she do to find the other term for the equivalent ratio? multiply 9 by 1. multiply 9 by 6. multiply 9 by 7. multiply 9 by 9.