Answer:
It is an example of an observational study.
Step-by-step explanation:
ksbdksvudkdbckx skxid SORRRYYYYY BUT I NEED POINTSSSSS :(
The sale price of the jeans would be $73.09
6.5
7 5/8 + 5 3/8= 13
13/2=6.5
20000/5 or 4000 and 0/5