Abicyclist goes 43.54 miles in 3.5 hours. what is her speed?

Olivia uses the work below to determine 55% of 720 which explains the error in olivia’s solution

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?

What is the rate for one gallon of gasoline