Tabitha's hiking distance in july was 2 1/6 she write the distance as 2/16 miles. what error did she make?

Math i have no idea how to do a and b

Aresearch study is done to find the average age of all u.s. factory workers. the researchers asked every factory worker in ohio what their birth year is. this research is an example of a census survey convenience sample simple random sample

Leila is buying a dinosaur model. the price of the model is xxx dollars, and she also has to pay a 7\%7%7, percent tax.