A PHOTOGRAPHIC NEGATIVE MEASURES(1) FOR EVERY TEN CENT INCREASE IN...

28. A photographic negative measures

(1) For every ten cent increase in

1

7

2

inches. If the longer

8

inches by 2

1

price, the sales will decrease by

side of the printed picture is to be

5 percent.

4 inches, what will be the length of

(2) Each candy bar now costs 60 cents.

the shorter side of the printed

picture?