I will give brainiest to whoever answers correctly !! Please do not steal my points I'm tired of it put a legit answer or leave

Write the system of equations represented by the matrix. 0 1 2 4 -2 3 6 9 1 0 1 3

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?

Seymour is twice as old as cassandra. if 16 is added to cassandra’s age and 16 is subtracted from seymour’s age, their ages become equal. what are their present ages? show !