Albert photograph has an area of 80 square inches the length of the photo is 1 1/4 the width which of the following to be the dimensions of the photograph

(length) * (width) = Area = 80

(length) = 1.25 * (width)

replace what the length equals for the length

in the first equation to get:

1.25 * (width) * (width) = 80

(width) ^2 = 64 [divided 1.25 from both sides]

(width) = 8 [square rooted both sides]

plug this (width) back into the second equation

(length) = 1.25 * (8) = 10

so (width) = 8

and (length) = 10