Equation 1: 2x – 3y = -1 Equation 2: y = x-1
Looking at the system of equations above.
1. Which equation is already solved for a specific variable?
2. What variable are you substituting in the first equation?

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²

What is the base of 1/9 to the power of 2

This is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 5 terms.