When x = 2, y = 50 and when x = 4, y = 100. Which direct variation equation can be used to model this function?

xy = 100

xy = 400

y = 25x

y = 100x

The lcm of two numbers is the product of the two numbers

A marble factory makes single marbles, then put them in boxes of 10, cartons of 100 and crates of 1,000. How can the marble factory package 21,650 marbles?

What is 59% of 14 m?

A shoe store uses a 40% markup on its cost. Find the selling price of a pair of running shoes that cost the store $40.

sales at flower shop were $814 this week. this is $131 less than the sales last week. what were last weeks sales?

Carlos operates a helicopter. Carlos decides to measure the rotational velocity of the helicopter blades. What would be an appropriate unit for Carlos's purpose?

You are replacing the roof on the house shown, and you want to know the total area of the roof

Since it's Wednesday, Buy for Less gives a 5% discount for purchases. The items in Rhonda's cart total $53.75. She needs to know the cost of the items with the discount. So, she multiplies 5% times $53.75 and subtracts the amount from $53.75.

55x : 11x=? solve for x

The population of a town was 5655 in 2010. The population grows at a rate of 1.4% annually. (a) Use the exponential growth model to write an equation that estimates the population t years after 2010. (a) Estimate the population of the town in 2022.