Write an expression for The sum of the number of pieces in one pack of orange gum and the number of pieces in three packs of mint gum

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?

Which is the equation of a line perpendicular to the line with the equation 3x+4y=8

You deposit $5000 each year into an account earning 3% interest compounded annually. how much will you have in the account in 30 years?