Jane has a 5x7 inch photograph that she wants enlarged to a 10x14inch photograph. what is the scale factor from the original photograph to the enlarged photograph?

 1:2 because if you multiply 5 x 7 by 2 you get 10 x 14.

This is what i found “an explicit formula designates the nth term of the sequence, as an expression of n (where n = the term's location). it defines the sequence as a formula in terms of n. this example is an arithmetic sequence(the same number, 5, is added to each term to get to the next term).” i hope this you for what your looking for. can you plz mark me brainliest?