If anyone is willing to help, please write an answer and explain To practice for an Ironman competition, John swam 0.86 kilometers each day for 3 weeks. How many meters did he swim in those 3 weeks? thank you very much

Ammonia molecules have three hydrogen atoms and one nitrogen atom.how many of each atom arein five molecules of ammonia

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?

Which steps could be part of the process in algebraically solving the system of equations, y+5x=x^2+10 and y=4x-10