Julio had a job a jeweler. he had the assignment of counting the faces, vertices, and edges on the rubies. on the first ruby, julio counted 30 vertices and 50 edges. he quickly realized he didn't have to count the faces. how many faces were there?

21 faces

23 faces

22 faces

20 faces

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?

Whats the theoretical probability of popping a polka dot balloon? express your answer as a fraction, decimal and percent solid 15 polka dot 5 striped 17 plzz me due tomorrow

Tanner has purchased a car with a loan. his bank now deducts the amount of the monthly payment from his account on the second of every month. which financial service has tanner’s bank offered him? a. money transfer b. automated payment c. online banking d. atm withdrawal