20 rob is asked to simplify the expression below. 10x – 2(4x + 6y) + 3y he states that the simplified expression is 2x + 15y because using the distributive property yields 10x – 8x + 12y + 3y, and then combining like terms yields 2x + 15y. explain the error in rob's reasoning. write the correct simplified expression for 10x – 2(4x + 6y) + 3y.

Solve |2x - 5| = 4 if anyone could , that would be great

Graph the system: f(x)= 3/x-2; f(x)= 1/2x + 2

Mexico city, mexico, is the world's second largest metropolis and is also one of its fastest-growing cities with a projected growth rate of 3.2% per year. its population in 1991 was 20,899,000 people. use the formula p = 20.899e0.032t to predict its population p in millions with t equal to the number of years after 1991. what is the predicted population to the nearest thousand of mexico city for the year 2010?