Melanie works as a nanny and is paid $14 per hour. if she puts in 40 hours of work in 7 days, how much will she earn in a week? ( show work )

What is the distance between the points (2 -3) and (-6 4) on the coordinate plane

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 much dextrose 70% must be mixed with dextrose 5% to prepare 1,000 ml of dextrose 20%?