The graph shows the relationship between the weights of six wedges of cheese and the price of each wedge. Is the relationship represented by the graph a function? Justify your reasoning. Use the words "input" and "output" in your explanation, and connect them to the context represented by the graph.​

Andrea went to the store to buy sweater that was on sale for 40% off the original price it was then put on clearance an additional 25% off the sale price she also use a coupon that saved her an additional five dollars and j did not spend more than $7.60 for the sweater what are the possible values for the original price of the sweater?

Find the solution of this system of equation -7x+y=-20 9x-3y=36

Which function has the domain x> -11?