What is the area of this triangle H= 5in B= 10in

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?

X+ y = 5 ; x - y =3 solve using linear combination

Another type of subtraction equation is 16-b=7. explain how you would sole this equation then solve it.