Please tell me the answer!

The model was shaded two different ways to show a product.

A fraction bar divided into 8 parts. 6 parts are shaded blue and 4 parts are shaded pink. 3 parts overlap.

Which product is shown by the model?

One-half × One-eighth

One-half × One-fourth

One-half × Three-eighths

One-half × Three-fourths

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?