miss lawrence buys 8 ounces of smoked salmon at 17.98 per pound . how many does miss lawrence spend on the smoked salmon 16ounces =1 pound

Can someone check my answer? you : )

The vertices of a rectangle are given in the columns of the matrix . if is found to perform a transformation, what are the coordinates of the transformed rectangle? (0, 0), (0, –3), (–3, –3), (–3, 0) (0, 0), (0, 3), (3, 3), (3, 0) (0, 0), (0, 3), (–3, –3), (–3, 0) (0, 0), (0, 3), (–3, 3), (–3, 0)

The sum of two numbers is 86, and their difference is 20. find the two numbers