By which angle measures can the regular pentagon be rotated so it maps onto itself? select each correct answer. 72° 90° 135° 144° 216° 300°

Graph red beads cost $1 an ounce and gold beads cost $3 an ounce. juanita wants to purchase a 12-ounce mixture of red and gold beads that she can sell for $2 an ounce. the solution of the system shows the number of beads needed for juanita to break even. x + y = 12, x + 3y = 24 how many ounces of red beads will juanita buy to break even? how many ounces of gold beads will she buy?

If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?

A. what does the point (4, 122) represent? b. what is the unit rate? c. what is the cost of buying 10 tickets?