Determine all values of the constant k for which the given set of vectors is linearly independent.

He concluded that a heavier object dropped from the same height as a lighter object will land

Evaluate the expression for the given value of the variable 2×(c2-5) for c=4

If the cost to mail a package is an initial $5 and $0.28 for every pound the total cost to mail a package was $11.27, how much did the package weigh?