Two thumbtacks are placed at the points (-5, 0) and (0, 5). a piece of string is attached to both tacks. the string is then used to guide a pencil to draw an ellipse. the equation of the ellipse is x^2/49 + y^2/16 = 1 how long is the piece of string?

Which verbal expression best describes the algebraic expression 3x ÷ 5? the quotient of three times some number and five the product of some number and five divided by three the quotient of three and some number times five the sum of three and some number divided by five