Find three consecutive even numbers if it is known that the sum of the squares of the first 2 is equal to the square of the third number.

If 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?

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?

Asap! i'm not good math and i'm lost.