X+y=18,3x+4y=59

what's the answer

Paper plates cost $8 per package and plastic utensils cost $5 per package. your supplier delivers 15 packages for a total cost of $90.

In need of which of the following regression equations best fits the data shown below? explain reasoning (answers are in the picture below)

All swimsuits at a clothing store were marked down 30% on july 10. on august 1, all remaining swimsuits were marked down an additional 20%. if a swimsuit was originally $17.95, how much does it cost after august 1?