Im not sure if its right i think 120 ft. (i rather u search it up)
Since it's a square it must have 4 sides.
20÷4=5
area=l×w or b×h
5×5=25 (the sides of a square have the same length)
the area of the photograph is 25in²
hope this helped
Colder then -7.2 F would be -8.5 F
-7.2 > -8.5
anything to the left of -7.2 on the number line will be less then(oe in this case, colder then) -7.2....so -8.5 falls to the left of -7.2