Three friends took a trip to the mountains last year. Each friend took a different route on their trip. They compared their average speeds, but each friend represented the data in a different format. Their data is given in the table below, where x represents hours and y represents miles traveled.

step-by-step explanation:

both triangles are similar because 2 is just smaller than the big one 1 is similar because they are facing different way's but are similar to each other

step-by-step explanation:

answer: hence, function will be

explanation:

since we have given that

cost of a new textbook = $85

according to question, the resale value of a textbook decreases by 25% with each previous owner,

so, our function becomes,

here, y is the total value of the text book after x owners.

hence, function will be