How many tons are in 1,400 pounds?

What is the slope of the line shown below?

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'

Amir wants to proportionally increase the size of a photo to create a poster for his room. the size of the original photo is shown. complete the statement and then answer the question to represent ways that amir can increase the size of his photo.