Harold collected 160 different postage stamps. forty-five of his stamps had pictures of presidents. what percent of the stamps pictured presidents? round to the nearest percent, if necessary. %

In order to find this, we first subtract the 45 from the 160:
160−45=115
Then, we divide the 115 by 160:
115/160=0.718
Which means 72% of them are NOT stamps with presidents on them. Since we're looking for
100%, we'd just subtract 100 by 72:
100−72=28
That means that 28% of the 100% of the stamps are presidential stamps.

Xis -1/2
y is 35/4.