6x-y=-145
x=4-2y
applying systems of linear equations.

In trapezoid klmn, kj=19.2 and jm=22.5. identify ln.

If olu is twice as old as funmi if the sum of their ages is 60 how old is olu

Last month, a 770 g box of cereal was sold at a grocery store for $3.10. however, this month, the cereal manufacturer launched the same cereal in a 640 g box, which is being sold at $2.50. what is the percent change in the unit price?