• A photo store charges $1 for a print of a 5-inch * 7-inch photo, and $2 for a print
of an 8-inch x 10-inch photo. The table shows the cost of buying some photos.
Which statement is true?
Number of photos Cost of 5 x 7 photos Cost of 8 x 10 photos
1
S1
S2
2
S2
$4
3
S3
S6
S4
S8
The cost of any number of 8 * 10 photos is $4 more than the cost of the same number
of 5 x 7 photos
The cost of any number of 8 x 10 photos is half the cost of the same number of 5 x 7
photos
The cost of any number of 8 x 10 photos is $1 more than the cost of the same number
of 5 * 7 photos
The cost of any number of 8 x 10 photos is twice the cost of the same number of 5 x 7
photos.