I need help pls.

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?

Find the unit rate for: 75% high-fiber chimp food to 25% high -protein chimp food.

Which equation is y = -6x2 + 3x + 2 rewritten in vertex form?