Aculture started with 2000 bacteria after 6 hours it grew to 2200 bacteria. predict how many bacteria will be present after 12 hours. round your answer to nearest whole number.

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?

Acar travels at an average speed of 52 miles per hour. how long does it take to travel 299 miles

You give a $4 tip for a meal that cost $22. approximately what percent of the bill was your tip?