Todd started a new fitness plan. his starting weight was 210 lbs. he lost 4 lbs for each week he worked out and ate healthy. his current weight is 190 lbs. how many weeks has he worked out and ate healthy? a 5 b 4 c 3.5 d 6

According to modern science, earth is about 4.5 billion years old and written human history extends back about 10,000 years. suppose the entire history of earth is represented with a 10-meter-long timeline, with the birth of earth on one end and today at the other end.

How many $20 bills do you need to have to make $280

What is another way to express 36 +32