In 1990 the postal rate was 25 scents for the first ounce and 20 scents each additional ounce what would it cost to mail a package that weighed 16.5 ounces. ANSWER FAST PLEASE. FIRST PERSON RIGHT GETS BRAINLIEST.

Step-by-step explanation:

25*1-.25

20*15.5=3.10

3.10+0.25=  $3.35

To represent the opposite of this number, if it is positive nineteen, he would need to first take nineteen steps back to reach his original position which in this case represents zero. He would then need to take another nineteen steps backwards, to reach negative nineteen.