simplify the expression by removing grouping symbols and combining like terms. write the terms from the highest to the lowest power of the variable. -x^2-[3x-(12x^2-7x)] - [2 + (-2x - 2)]

Which values for a and b will create infinitely many solutions for this system of equations? ax-y=8 2x+y=b

Δabc is reflected across line l to form δ alblcl, and a¯¯¯al¯¯¯¯ intersects line l at point d. which equation is not necessarily true?

The classrooms are trying to raise $1,200.00 for charity. mrs. leblanc's class has raised 50%. mr. patel's class has raised $235.14 ms. warner's class has raised 1/3 as much as mrs. leblanc's class. how much more money is needed to reach the goal of $1,200.00?