What is a solution to the system of linear equations?

(-3,0)
(-3,3)
(0,2)
(3,1)

Jamie went to home depot.she bought 25 bags of soil that cost $9 per bag.she bought 15 pots at $8 each,and she bought 23 bags of pebbles at $15 each.she used a coupon that gave her $5 off for every 100 dollars she spent.how much did jame pay at the end?

Complete the steps, which describe how to find the area of the shaded portion of the circle. find the area of the sector by multiplying the area of the circle by the ratio of the to 360. subtract the area of the triangle from the area of the sector.

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.