In 2006, the cost of mailing a letter first class in the United States was $0.39 for the first ounce and $0.24 for each additional ounce. Which expression shows the cost of mailing a 3-ounce letter in 2006?
O A. $0.39 + $0.24
OB. $0.39 + 2($0.24)
O c. 3($0.39 + $0.24)
OD. 3($0.39) + 2($0.24)

Find the length of the following tangent segments to the circles centered at o and o' whose radii are 5 and 3 respectively and the distance between o and o' is 12. what is the tangent segment of cd?

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?

Rewrite 9 log, x2 in a form that does not use exponents. 9log, x = log, x