A wolf bone is found to be 75,000 years old. How many parts per trillion of Carbon-14 were there? Show your work.

Aplane is taking off from bangladesh headed to new york city. at the same time, a plane from new york city is headed to bangladesh is also taking off. the plane bound to new york city is traveling at 600 mph, while the plane traveling to bangladesh is traveling at 400 mph. how far from new york city will the two planes meet if the distance between new york city and bangladesh is 8,000 miles?

Which coefficient matrix represents a system of linear equations that has a unique solution ? options in photo*

Given the net of the rectangular prism, what is its surface area?