roger has a nail that is 12 centimeters long. he measures and records the length of the nail as 15 centimeters. what is the % error in Rogers measurements

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?

In need of in the diagram, ∠abc is a right angle. ∠dbc = 30°27'40". find the measure of ∠abd.

What three-dimensional solid have 6 rectangular faces, 2 equal bases that are not rectangles and 18 edges