Calcule o valor de X
3,5+×=7,5

On a piece of paper graph f(x)=5•(0.4)^x

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?

How many $20 bills do you need to have to make $280