A sportswear buyer reduced prices of 25 belts from $24 to $18 for a four-day sale. Ten of the belts were sold. After the sale, the remaining belts were priced at $22 each. Calculate the markdown cancellation.

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?

Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?

Solve this equation using substitution. {4x + y = −2} {4x + 6y = 44}