The mean of 5,7,9 show that the mean of these numbers is 7

Use the function f(x) is graphed below. the graph of the function to find, f(6). -2 -1 1 2

The holiday party will cost $160 if 8 people attend.if there are 40 people who attend the party, how much will the holiday party cost

Three numbers x, y, and z are in the ratio 2: 7: 8. if 12 is subtracted from y, then three numbers form a geometric sequence (in the order x, y–12, z). find x, y, and z. there are 2 sets.