To find the sales tax on an item, ​divide​ the price of the item by 20. a. Write an algebraic expression to find the sales tax on an item that costs ​d ​dollars.

b. Use your expression to find the sales tax on a television that costs $800.

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?

The volume of a cube is 8 in to the 3rd power. how long is each side?

The length of a rectangular piece of land is 92 yards more than three times its width. the perimeter is 760 yards. find its dimensions.