2x+4y=24 in slope intercept form

Which of the following system of equation is not equal to the system of equations is not equal to the system of equations shown below

Which is an equation for the nth terms of the sequence 12,15,18,21

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.