Alexia and haley start out together to bike from apple valley to hesperia, a distance of 15 miles. alexia bikes at 5 miles per hour and haley bikes at 7.5 miles per hour. which statement is true?

Ineed with number 17 i don’t get it at alll

Noor brought 21 sheets of stickers. she gave 1/3 of a sheet to each of the 45 students at recess. she wants to give teachers 1 1/2 sheets each.

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?