Mr. smith built a rectangular-shaped sandbox for his children, measuring 4 feet by 4 feet by 6 inches. sand has a density of approximately 100 pounds per cubic foot and is sold in 50-pound bags for $3.50 each. how much will it cost mr. smith to completely fill the sandbox?

What is the correlation coefficient between the variables? round to three decimal places. enter your answer in the box

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?

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