there are 1800 stamps in a collection. 70% of the stamps are local stamps and the rest are foreign stamps. How many foreign stamps are there in the collection? 450 stamps

550 stamps

580 stamps

540 stamps

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What is the exact volume of the cylinder 1.5 m 2.5 m

Lin is writing an equation to model the proportional relationship between y, the total cost in dollars of downloading videos from a website, and x, the number of videos downloaded. she knows that the total cost to download 3 videos was $12. her work to find the equation is shown below. joylin’s work step 1 k= 3/12= 0.25 step 2 y= 0.25x where did joylin make her first error?

Amanda went into the grocery business starting with five stores. after one year, she opened two more stores. after two years, she opened two more stores than the previous year. if amanda expands her grocery business following the same pattern, which of the following graphs represents the number of stores she will own over time?